Computer Fundamental MCQ Of IT Officer(PSC)

1. A system is
a. Input, output and storage unit
b. An integration of different units so as to achieve an objective
c. Input unit
d. Input and output unit
Answer: b. A system is an integration of different units designed to achieve an objective.

2. Computer system comprises of
a. Input unit
b. Processing and storage unit
c. Output unit
d. All of them
Answer: d. A computer system includes all these components.

3. The memory size of mainframe computers & advanced technology microcomputer are expressed as
a. Bytes
b. KB
c. Bits
d. MB
Answer: d. Memory size is typically expressed in megabytes (MB) for such systems.

4. An device is any device that provides information, which is sent to the CPU
a. Input
b. Output
c. CPU
d. Memory
Answer: a. An input device provides information to the CPU.

5. Can you tell what passes into and out from the computer via its ports?
a. Data
b. Bytes
c. Graphics
d. Picture
Answer: a. Data passes through ports.

6. Through which device the main component of the computer communicate with each other?
a. Keyboard
b. System bus
c. Monitor
d. Memory
Answer: b. The system bus facilitates communication between components.

7. Which of the following means to reckon?
a. Putare
b. Com
c. Computa
d. Computer
Answer: a. "Putare" is Latin for "to reckon," the root of "computer."

8. Which of the following is not a form of data?
a. Number and character
b. Images
c. Sound
d. None of above
Answer: d. All listed options are forms of data.

9. The Information perform as
a. Input
b. Processing
c. Output
d. Storage
Answer: c. Information is an output of processing.

10. The qualitative or quantitative attribute of a variable or set of variable is termed as
a. Data
b. Information
c. Both of above
d. None of above
Answer: a. This is termed data.

11. Digital device is
a. Digital clock
b. Automobile speed meter
c. Clock with dial and two hands
d. All of them
Answer: a. A digital clock is a digital device; others may not always be.

12. A computer consist of
a. A central Processing Unit
b. A memory
c. Input and output unit
d. All of these
Answer: d. A computer includes all these components.

13. Properly arranged data is called
a. Field
b. Words
c. Information
d. File
Answer: c. Properly arranged data is information.

14. Regarding data, computer are very good at
a. Store
b. Processing
c. Retrieving
d. All of above
Answer: d. Computers excel at all these tasks.

15. Which of the following is valid statement?
a. Data in itself is useless unless it is processed
b. The data that is processed is called a program
c. The data which is not yet processed in information
d. Information is processed by computer to generate data
Answer: a. Data is useless until processed into information.

16. The act of retrieving existing data from memory is called
a. Read-out
b. Read from
c. Read
d. All of above
Answer: c. The act is commonly called "read."

17. To locate a data item for storage is
a. Field
b. Feed
c. Database
d. Fetch
Answer: d. "Fetch" refers to locating data for storage.

18. Which of the following is hardware?
a. Gateway
b. Router
c. Firewall
d. Browser
Answer: b. A router is hardware; others can be software or concepts.

19. In most of the IM PCs, the CPU, the device drivers, memory, expansion slots and active components are mounted on a single board. What is the name of board?
a. Motherboard
b. Daughterboard
c. Breed board
d. Father board
Answer: a. The board is called a motherboard.

20. Which of the following is data insertion input device?
a. Mouse
b. Keyboard
c. OCR
d. Joy stick
Answer: b. A keyboard is a primary data insertion device.

21. The term used to define all input and output device in a computer system is
a. Hardware
b. Firmware
c. Software
d. Shared Resource
Answer: a. These are collectively hardware.

22. Which unit is responsible for converting the data received from the user into a computer understandable format?
a. Memory unit
b. Arithmetic and logic unit
c. Input unit
d. Output unit
Answer: c. The input unit handles this conversion.

23. Which of the following describes the correct format of an input instruction?
a. IN 82
b. INPUT 82
c. INP 82
d. 82 IN
Answer: b. "INPUT 82" is a typical format.

24. The only language which the computer understand is
a. Assembly language
b. Binary language
c. BASIC
d. C Language
Answer: b. Computers understand binary language.

25. Who invented keyboard?
a. Christopher Latham Sholes
b. Douglas Engelbert
c. Clifford Berry
d. Vint Cerf
Answer: a. Christopher Latham Sholes invented the keyboard.

26. Keys present on the top row of the keyboard are
a. Function
b. Typewriter
c. Numeric
d. Navigation
Answer: a. The top row typically contains function keys.

27. Multimedia keyboard have some
a. Symbolic
b. Special
c. Function
d. Number
Answer: b. Multimedia keyboards have special keys.

28. Buttons on the keyboard are known as
a. Letters
b. Words
c. Keys
d. All of above
Answer: c. They are called keys.

29. Which key is used to erase the text type left of the insertion point?
a. Esc
b. Backspace
c. Delete
d. End
Answer: b. Backspace erases text to the left.

30. Which key used to make the cursor move right to present point occupy more space among the key?
a. Enter
b. Tab
c. Spacebar
d. Esc
Answer: c. Spacebar adds space.

31. How many keys can we find in PC-AT Keyboard?
a. 104
b. 101
c. 84
d. 83
Answer: b. A PC-AT keyboard typically has 101 keys.

32. Which keyboard is effective to use by Disable person?
a. QWERTY
b. AT
c. Ergonomics
d. XT
Answer: c. Ergonomic keyboards are designed for accessibility.

33. Which key is used to erase the text type right of the insertion point?
a. Delete
b. Esc
c. Backspace
d. Tab
Answer: a. Delete erases text to the right.

34. Which of the following device can be used to directly image printed text?
a. MICR
b. OCR
c. OMR
d. All of above
Answer: b. OCR (Optical Character Recognition) is used for this.

35. The input machine which originated in the US around 1880s is a
a. Touch panel
b. Mouse
c. Wand
d. Writing tablet
Answer: b. The mouse originated around that time.

36. A device for converting handwritten impression into coded characters & positional coordinates for input to a computer is
a. Keyboard
b. Mouse
c. Trackball
d. Lighting pen
Answer: d. A light pen can do this.

37. Which is used to select object and command within a program
a. Keyboard
b. Mouse
c. Trackball
d. Lighting pen
Answer: b. A mouse is commonly used for this.

38. Mouse was invented by
a. Dogaus Thomson
b. Douglas Engelbert
c. Charlse Ramson
d. Cherl lavinch
Answer: b. Douglas Engelbart invented the mouse.

39. is an electronic device that can read and output printed bar code to a computer.
a. BCR
b. MICR
c. OMR
d. QR code
Answer: a. BCR (Bar Code Reader) is correct.

40. The wheel located between the two standard buttons of a mouse
a. Click on web pages
b. Shutdown
c. Scroll
d. Click & select item
Answer: c. The wheel is a scroll wheel.

41. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
a. Data collection terminal
b. OCR register terminal
c. POS terminal
d. Video display terminal
Answer: c. POS (Point of Sale) terminal fits this description.

42. Which device is used for security system, employee attendance
a. BCR
b. OMR
c. OCR
d. Biometric Reader
Answer: d. Biometric Reader is used for this.

43. Which device dispenses with the use of the keyboard?
a. Joystick
b. Mouse
c. Light pen
d. Touch
Answer: b. A mouse can replace keyboard input.

44. The pen is a small input device used to select and display objects on a screen
a. Ink
b. Light
c. Mouse
d. Touch
Answer: b. A light pen is used for this.

45. Which of the following is a Mouse button?
a. Left button
b. Right button
c. Drag and drop
d. All of above
Answer: d. Both left and right buttons are mouse buttons.

46. The OCR recognizes the the help of light source of the characters with
a. Size
b. Shape
c. Colour
d. None of above
Answer: b. OCR recognizes character shape.

47. The pattern of printed lines on most product are called
a. Prices
b. OCR
c. Scanner
d. Bar code
Answer: d. These are bar codes.

48. Which of the following is not a function of the input unit
a. It reads instruction data from the outside world
b. It converts the data from the outside world
c. It makes the data into user understandable format
d. It supplies the data and instruction to the computer for further processing
Answer: b. Converting data is part of the process, not a primary function.

49. Which input device used in bank to process large amount of cheque?
a. OMR
b. MICR
c. BCR
d. QR Code
Answer: b. MICR (Magnetic Ink Character Recognition) is used for checks.

50. The joystick is a stick that moves the graphic cursor in the direction the stick is moved
a. Parallel
b. Horizontal
c. Straight
d. Vertical
Answer: b. It moves horizontally.

51. Which card is most important for business purpose?
a. Debit card
b. Credit card
c. Smart card Reader
d. BCR
Answer: b. Credit cards are widely used in business.

52. Joystick typically has a button on to select the option pointed by the cursor.
a. Bottom
b. Left
c. Right
d. Top
Answer: d. The button is typically on top.

53. A light sensitive device that convert drawing, printed text or other images into digital form is
a. Keyboard
b. Plotter
c. Scanner
d. OMR
Answer: c. A scanner performs this function.

54. MICR stands for
a. Input unit
b. Output unit
c. ALU
d. Control Unit
Answer: Not applicable (context mismatch). MICR stands for Magnetic Ink Character Recognition, not a unit.

55. The process of producing useful information for the user is called
a. Controlling
b. Outputting
c. Inputting
d. Processing
Answer: d. Processing produces useful information.

56. Web camera is an
a. Input unit device
b. Output Unit device
c. Processing device
d. Input and Output device
Answer: a. A webcam is an input device.

57. Where as a computer mouse moves over the table surface, the trackball is
a. Stationary
b. Difficult to move
c. Dragged
d. Moved in small step
Answer: a. A trackball is stationary.

58. Which is considered a direct entry input device?
a. Optical scanner
b. Mouse and digitizer
c. Light pen
d. All of above
Answer: d. All can be direct entry devices.

59. Which unit converts computer data into human readable form?
a. CRT
b. LCD
c. LED
d. Flat panel Monitor
Answer: a. CRT displays data in readable form.

60. What types of computer is digital camera?
a. Input
b. Output
c. Software
d. Storage
Answer: a. A digital camera is an input device.

61. Which of the following is not a function of the Output Unit?
a. It produces results that can be easily understood by the user
b. It accepts the results produced by the computer
c. It supplies the data and instruction to the outside world
d. It supplies the data and instructions to the computer for further processing
Answer: b. The output unit does not accept results.

62. USB refers to
a. Storage device
b. A processor
c. A port type
d. A serial bus standard
Answer: d. USB stands for Universal Serial Bus.

63. What does SVGA stands for
a. Standard Visual Graphic Array
b. Super Visual Graphic Array
c. Standard Video Graphic Array
d. Super Video Graphic Array
Answer: c. SVGA stands for Standard Video Graphic Array.

64. A special request originated from some device to the CPU to acquire some of its time is called
a. Disturbance
b. Attenuation
c. Interrupt
d. Noise
Answer: c. This is an interrupt.

65. A monitor looks like a television and are normally used with non-portable computer screen system.
a. CRT
b. LCD
c. LED
d. Flat panel Monitor
Answer: a. CRT monitors resemble TVs.

66. A pixel is
a. A computer program that draw pixel
b. A picture stored in secondary memory
c. The smallest resolvable part of a picture
d. None of above
Answer: c. A pixel is the smallest resolvable part.

67. The device primarily used to provide hard copy is the
a. CRT
b. Computer Cohsole
c. Printer
d. Card Reader
Answer: c. A printer provides hard copies.

68. A hard copy would be prepared on a
a. Line printer
b. Dot matrix printer
c. Typewriter terminal
d. All of these
Answer: d. All can produce hard copies.

69. What is required when more than one person uses a central computer at the same time?
a. Light pen
b. Mouse
c. Digitizer
d. Terminal
Answer: d. Terminals are required.

70. The speed of printer is limited by the speed of
a. Paper movement
b. Cartridge used
c. Length of paper
d. All of above
Answer: a. Paper movement limits speed.

71. Plotter accuracy is measured in term of repeatability and
a. Buffer size
b. Resolution
c. Vertical dimension
d. Intelligence
Answer: b. Accuracy is measured by resolution.

72. Line printer that print one limit at a time
a. Laser printer
b. Ink jet Printer
c. Drum printer
d. Chain Printer
Answer: c. Drum printers print line by line.

73. Which of the following is not input unit device?
a. Scanner
b. Camera
c. Plotter
d. Digitizer
Answer: c. A plotter is an output device.

74. Which of the following is not purely output device?
a. Screen
b. Printer
c. Speaker
d. Plotter
Answer: a. A screen can also display input.

75. Which of the following is not an input device?
a. OCR
b. Optical scanner
c. Voice recognition device
d. Computer Output to Microfilm
Answer: d. COM is an output device.

76. An output device that uses word or messages recorded on a magnetic medium to produce audio response is
a. Magnetic tape
b. Voice response Unit
c. Voice recognition Unit
d. Voice band
Answer: b. A voice response unit produces audio.

77. What is the name of the display feature that highlights are of the screen of the screen which requires operator attention?
a. Pixel
b. Reserve video
c. Touch screen
d. Cursor
Answer: b. Reserve video highlights areas.

78. Which of the following are (is) considered to be video component?
a. Resolution
b. Color depth
c. Refresh Rate
d. All of above
Answer: d. All are video components.

79. A paper printout of a document is known as
a. Softcopy output
b. Hardcopy output
c. Permanent Output
d. All of above
Answer: b. It is a hardcopy output.

80. VGA is
a. Video Graphics Array
b. Visual Graphics Array
c. Volatile Graphics Array
d. Video Graphics Adapter
Answer: a. VGA stands for Video Graphics Array.

81. What do you call a single point on a computer screen?
a. Cell
b. Element
c. Pixel
d. Bit
Answer: c. A single point is a pixel.

82. Regarding of VDU, Which statement is more correct
a. It is an output device
b. It is an input device
c. It is an peripheral device
d. It is hardware device
Answer: a. A VDU (Visual Display Unit) is an output device.

83. Access time is
a. Seek time + Latency time
b. Seek time
c. Seek time/Latency time
d. Latency time
Answer: a. Access time includes seek and latency time.

84. A disadvantage of the laser printer is
a. It is quieter than impact printer
b. It is very slow
c. The output is of a lower quality
d. None of above
Answer: d. Laser printers are fast and high-quality.

85. To produce high quality graphics(hardcopy) in color, you would want to use
a. RGB monitor
b. Plotter
c. Ink jet printer
d. Laser printer
Answer: c. Inkjet printers are good for color graphics.

86. A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called
a. Laser printer
b. Dot matrix printer
c. Digital plotter
d. Inkjet printer
Answer: d. This describes an inkjet printer.

87. What types of device are speaker or headphones?
a. Input
b. Input/Output
c. Software
d. Output
Answer: d. Speakers and headphones are output devices.

88. Laser printer belong to
a. Line printer
b. Page printer
c. Band printer
d. Dot matrix printer
Answer: b. Laser printers are page printers.

89. A high quality of CAD system uses the following for printing drawing and graphs
a. Dot matrix printer
b. Digital plotter
c. Line printer
d. All of above
Answer: b. Digital plotters are used for CAD.

90. Which printer is very commonly used for desktop publishing?
a. Laser printer
b. Inkjet printer
c. Daisywheel printer
d. Dot matrix printer
Answer: a. Laser printers are common for desktop publishing.

91. Which of the printers used in conjunction with computers uses dry link powder?
a. Daisy wheel printer
b. Line printer
c. Laser Printer
d. Thermal printer
Answer: c. Laser printers use dry toner powder.

92. The output quality of a printer is measured in
a. Dot per inch
b. Dot per square inch
c. Dot printed per unit time
d. All of above
Answer: a. Quality is measured in dots per inch (dpi).

93. What is the responsibility of the logical unit in the CPU of a computer?
a. To produce result
b. To compare numbers
c. To control flow of information
d. To do mathematic calculation
Answer: b. The logical unit compares numbers.

94. Which part of the computer is used for calculating and comparing
a. Disk unit
b. Control unit
c. ALU
d. MODEM
Answer: c. The ALU handles calculations and comparisons.

95. Instructions and memory address are represent by
a. Character code
b. Binary code
c. Binary word
d. Parity bit
Answer: b. They are represented by binary code.

96. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
a. Data collection terminal
b. OCR register terminal
c. Video Display terminal
d. POS terminal
Answer: d. POS terminal fits this role.

97. A set of flip flop integration together is called
a. Counter
b. Adder
c. Register
d. None of above
Answer: c. A set of flip-flops forms a register.

98. The content of information are stored in
a. Memory data register
b. Memory address register
c. Memory arithmetic register
d. Memory access register
Answer: a. Content is stored in the memory data register.

99. The brain of any computer system is
a. ALU
b. Memory
c. CPU
d. Control Unit
Answer: c. The CPU is the brain.

100. Which of the following processor use RISC technology?
a. 486dx
b. Power PC
c. 486sx
d. 6340sx
Answer: b. PowerPC uses RISC (Reduced Instruction Set Computing).

101. What produce useful information out of data?
a. Computer
b. Processing
c. Programming
d. None of above
Answer: b. Processing transforms data into information.

102. Registers, which are partially visible to users and used to hold conditional, are known as
a. PC
b. Memory address register
c. General purpose register
d. Flags
Answer: d. Flags hold conditional states.

103. Registers which are partially visible to users and used to hold conditional codes are known as
a. PC
b. Flags
c. Memory Address Registers
d. General Purpose Register
Answer: b. Flags are used for conditional codes.

104. The full form of ALU is
a. Arithmetic Logic Unit
b. Arithmetic Logical Unit
c. Array Logic Unit
d. Application Logic Unit
Answer: a. ALU stands for Arithmetic Logic Unit.

105. A set of information that defines the status of resources allocated to a process is
a. Process control
b. ALU
c. Register Unit
d. Process description
Answer: a. This is process control.

106. What are the three decisions making operations performed by the ALU of a computer?
a. Greater than
b. Less than
c. Equal to
d. All of these
Answer: d. ALU performs all comparison operations.

107. Which device can understand difference between data and program?
a. Input device
b. Output device
c. Memory
d. Microprocessor
Answer: d. The microprocessor distinguishes data and programs.

108. A register organized to allow to move left or right operation is called a
a. Counter
b. Loader
c. Adder
d. Shift register
Answer: d. This is a shift register.

109. Which of the following is the first computer to use stored Program concept?
a. UNIVAC
b. ENIAC
c. EDSAC
d. None of above
Answer: c. EDSAC was the first to use stored programs.

110. Which of the following terms is the most closely related to main memory?
a. Non volatile
b. Permanent
c. Control Unit
d. Temporary
Answer: d. Main memory is temporary.

111. Which of the following is internal memory?
a. Disks
b. Pen Drive
c. RAM
d. CDs
Answer: c. RAM is internal memory.

112. Which of the following is the most quickly accessible storage?
a. RAM
b. Register
c. Disk
d. Pen drive
Answer: b. Registers are the fastest.

113. Which of the following is non volatile memory
a. ROM
b. SRAM
c. DRAM
d. All of these
Answer: a. ROM is non-volatile.

114. Which of the following circuit is used as a Memory device in a computer?
a. Rectifier
b. Comparator
c. Flip flop
d. Accumulator
Answer: c. Flip-flops are used in memory.

115. Which unit holds data temporarily?
a. Input unit
b. Secondary storage device
c. Output unit
d. Primary Memory unit
Answer: d. Primary memory holds data temporarily.

116. Latch is a circuit that has
a. One stable state
b. Two stable state
c. Three stable state
d. Multi Stable state
Answer: b. A latch has two stable states.

117. A name or number used to identify storage location devices?
a. A byte
b. A record
c. An address
d. All of above
Answer: c. An address identifies storage locations.

118. Tape speed is
a. Inch per second
b. Feet per second
c. Meter per second
d. Centimeter per second
Answer: a. Tape speed is measured in inches per second.

119. A typical personal computer used for business purpose would have a RAM
a. 4K
b. 16K
c. 64K
d. 256k
Answer: c. 64K was typical for early business PCs.

120. The instruction for starting the computer are house on
a. RAM
b. CD-ROM
c. Read only memory chip
d. All of above
Answer: c. Instructions are on ROM chips.

121. Primary memory stores
a. Data alone
b. Program store
c. Result alone
d. All of these
Answer: d. Primary memory stores all.

122. Which of the following memories allows simultaneous read and write operation
a. ROM
b. RAM
c. EPROM
d. None of above
Answer: b. RAM allows simultaneous read and write.

123. EEPROM can be used for
a. Erasing the content of ROM
b. Reconstructing the content of ROM
c. Erasing and reconstructing of ROM
d. Duplicating ROM
Answer: c. EEPROM allows erasing and reprogramming.

124. Processes that are used to acquire, store, retain and later retrieve information is
a. Accumulator
b. Control Unit
c. Register Unit
d. Memory
Answer: d. Memory handles these processes.

125. Which company is the biggest player in the microprocessor industry?
a. Motorola
b. IBM
c. Intel
d. AMD
Answer: c. Intel is the leading player.

126. The ALU of a computer responds to the commands coming from
a. Primary memory
b. Control section
c. External memory
d. Cache memory
Answer: b. The control section issues commands.

127. RAM chips
a. Allow the computer to store data electronically
b. Store data indefinitely unless you delete it
c. Are secondary memory
d. All of above
Answer: a. RAM stores data electronically.

128. Which memory is non volatile and may be written only once?
a. RAM
b. EPROM
c. EEPROM
d. PROM
Answer: d. PROM is written once and non-volatile.

129. What is a semi conductor memory?
a. Dynamic
b. Static
c. Bubble
d. Both a and b
Answer: d. Both dynamic and static are semiconductor types.

130. The secondary storage devices can only store data but they cannot perform
a. Arithmetic operation
b. Logic operation
c. Fetch operation
d. Either of the above
Answer: d. They do not perform operations.

131. A storage area used to store Data to a compensate for the difference in speed at which the difference in speed at
a. Memory
b. Buffer
c. Accumulator
d. Address
Answer: b. A buffer compensates for speed differences.

132. In a computer is capable to store single binary bit.
a. Capacitor
b. Flip flop
c. Register
d. Inductor
Answer: b. A flip-flop stores a single bit.

133. Which of the following require large computer memory?
a. Imaging
b. Graphic
c. Voice
d. All of these
Answer: d. All require significant memory.

134. What does DMA stands for?
a. Distinct Memory Access
b. Direct Memory Access
c. Direct Module Access
d. Direct Memory Allocation
Answer: b. DMA stands for Direct Memory Access.

135. The memory which is programmed at the time it is manufactured
a. ROM
b. RAM
c. PROM
d. EPROM
Answer: a. ROM is programmed at manufacture.

136. The two kinds of main memory are:
a. Primary and secondary
b. Random and sequential
c. RAM and ROM
d. All of above
Answer: c. RAM and ROM are main memory types.

137. Which access method is used to access cassette tape?
a. Direct
b. Sequential
c. Both of above
d. None of the above
Answer: b. Cassette tapes use sequential access.

138. Which is used for manufacturing chips?
a. Bus
b. Control Unit
c. Semiconductor
d. A and b only
Answer: c. Semiconductors are used to make chips.

139. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be
a. 216
b. 65536
c. 64K
d. Any of the above
Answer: b. 16 bits allow 65,536 addresses.

140. Memory is up of
a. Set of wires
b. Set of circuits
c. Large number of cells
d. All of these
Answer: d. Memory comprises all these.

141. In which year chip used inside the computer for the first time?
a. 1964
b. 1975
c. 1999
d. 1944
Answer: d. Chips were first used around 1944.

142. Which of the following file organization is most efficient for a file with a high degree of file activity?
a. Sequential
b. ISAM
c. VSAM
d. B-Tree Index
Answer: d. B-Tree Index is efficient for high activity.

143. Which computer memory is used for storing programs and data currently being processed by the CPU?
a. Mass storage
b. Internal memory
c. Non volatile Memory
d. EEPROM
Answer: b. Internal memory (RAM) is used.

144. Which term is used to describe RAM?
a. DRAM
b. SRAM
c. VRAM
d. All of above
Answer: d. All are types of RAM.

145. What types of memory is not directly addressable by the CPU and requires special software called EMS
a. Extended
b. Expanded
c. Base
d. Conventional
Answer: b. Expanded memory requires EMS.

146. Which unit holds data permanent?
a. Secondary unit
b. Register unit
c. Memory unit
d. Primary unit
Answer: a. Secondary storage holds data permanently.

147. EMS stands for
a. Extended Memory Specification
b. Expanded Memory Specification
c. External Memory Specification
d. None of above
Answer: b. EMS stands for Expanded Memory Specification.

148. On a PC, how much memory is available to application software?
a. 1034 KB
b. 760 KB
c. 640 KB
d. 560 KB
Answer: c. 640 KB was the typical limit for early PCs.

149. Which technology is used in Compact disk?
a. Mechanical
b. Electrical
c. Electro Magnetic
d. Laser
Answer: d. CDs use laser technology.

150. Before a disk can be used to store data. It must be
a. Formatted
b. Reformatted
c. Addressed
d. None of above
Answer: a. A disk must be formatted.

151. Which of the following is used as a primary storage device?
a. Magnetic drum
b. Hard disk
c. Floppy
d. All of above
Answer: d. All can serve as primary storage.

152. Which of the following memories must be refreshed many times per second?
a. Static RAM
b. Dynamic RAM
c. EPROM
d. ROM
Answer: b. Dynamic RAM requires refreshing.

153. EEPROM stands for
a. Electrically Erasable Programmable Read Only Memory
b. Electronic Erasable Programmable Read Only Memory
c. Easily Erasable Programmable Read Only Memory
d. Easily Erasable Programmable Read Only Memory
Answer: a. EEPROM stands for Electrically Erasable Programmable Read Only Memory.

154. Which of the following disk is fixed disk?
a. Hard disk
b. Flash disk
c. Blue-ray disk
d. DVDs
Answer: a. A hard disk is fixed.

155. The advantage of video disk is
a. Compactness
b. Potential capacity
c. Durability
d. Cost effectiveness
Answer: b. Video disks have high capacity.

156. Latency time is
a. Time to spin the needed data under head
b. Time to spin the needed data under track
c. Time to spin data under sector
d. All of above
Answer: a. Latency is the time to position under the head.

157. Mostly which of the following device is used to carry user files?
a. Floppy disk
b. Hard Disk
c. RAM
d. CDROM
Answer: b. Hard disks are used to carry files.

158. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
a. Memory address location
b. Program counter
c. Accumulator
d. Instruction register
Answer: b. The program counter tracks the next instruction.

159. Which of the following is largest manufacturer of Hard disk drive?
a. IBM
b. Seagate
c. Microsoft
d. 3M
Answer: b. Seagate is a leading manufacturer.

160. Floppy disks which are made from flexible plastic material are also called
a. Hard disk
b. High density disks
c. Diskette
d. Templates
Answer: c. They are called diskettes.

161. Which of the following is read only memory storage device?
a. Floppy Disk
b. CD-ROM
c. Hard disk
d. None of above
Answer: b. CD-ROM is read-only.

162. Which of the following is not an advantage of magnetic disk storage?
a. The access time of magnetic disk is much less than that of magnetic tape
b. Disk storage is less expensive than tape storage
c. Disk storage is longer lasting than magnetic tape
d. None of above
Answer: d. All are advantages.

163. The storage subsystem in a microcomputer consists mainly of or media with varying capacitances
a. Memory or video
b. Magnetic or optical
c. Optical or memory
d. Video or magnetic
Answer: b. Magnetic and optical media are used.

164. Which of the following are the best units of data on an external storage device?
a. Bits
b. Bytes
c. Hertz
d. Clock cycle
Answer: b. Bytes are the best unit for storage.

165. Which unit is known as nerve center of computer?
a. ALU
b. CU
c. Memory
d. Register
Answer: a. The ALU is the nerve center.

166. What does disk drive do
a. Rotate the disk
b. Read the disk
c. Both a and b
d. Load a program from the disk into the memory
Answer: c. It rotates and reads the disk.

167. Before a disk drive can access any sector record, a computer program has to provide the record's disk address, what information does this address specify?
a. Track number
b. Sector number
c. Surface number
d. All of above
Answer: d. It specifies all these.

168. Magnetic tape can serve as
a. Secondary storage media
b. Output media
c. Input media
d. All of above
Answer: a. It serves as secondary storage.

169. Which device is required for the Internet connection?
a. Joystick
b. Modem
c. CD Drive
d. NIC Card
Answer: b. A modem is required for internet.

170. The data recording format in most of the modern magnetic tape is
a. ASCII
b. EBCDIC
c. ANSI
d. BCD
Answer: a. ASCII is commonly used.

171. Multi user system provided cost saving for small business because they use a single processing unit to link several?
a. Personal Computer
b. Workstation
c. Dumb terminal
d. Mainframe
Answer: c. Dumb terminals are linked in multi-user systems.

172. Serial access memories are useful in applications where
a. Data consist of numbers
b. Short access time is required
c. Each stored word is processed differently
d. Data naturally needs to flow in and out in serial
Answer: d. Serial access suits sequential data flow.

173. As compared to diskettes, the hard disks are
a. More expensive
b. More portable
c. Less rigid
d. Slowly accepted
Answer: a. Hard disks are more expensive.

174. Storage capacity of magnetic disk depends on
a. Track per inch of surface
b. Bits per inch of track
c. Disk pack in disk surface
d. All of above
Answer: d. All factors affect capacity.

175. CD-ROM is a
a. Semiconductor memory
b. Memory register
c. Magnetic memory
d. None of above
Answer: d. CD-ROM is optical, not these.

176. Which of the following storage device store maximum amount of data?
a. Floppy disk
b. Hard disk
c. Compact disk
d. Magneto Optic Disk
Answer: b. Hard disks store the most data.

177. A floppy disk contain
a. Circular track only
b. Sector only
c. Both Circular and track
d. None of above
Answer: c. It contains both tracks and sectors.

178. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
a. MAR
b. MDR
c. Instruction Register
d. Program counter
Answer: b. MDR (Memory Data Register) is loaded.

179. Hard disk is coated in both sides with
a. Magnetic metallic oxide
b. Optical metallic oxide
c. Carbon layer
d. All of above
Answer: a. Magnetic metallic oxide is used.

180. Which of the following is not a valid size of floppy disk?
a. 8"
b. 5.5"
c. 3.5"
d. 5.25"
Answer: b. 5.5" is not a standard size.

181. Magnetic disk are the most popular medium for
a. Direct access
b. Sequential access
c. Both of above
d. None of above
Answer: c. They support both access types.

182. Floppy disk typically in diameter
a. 3"
b. 5.25"
c. 8"
d. All of above
Answer: b. 5.25" was a common size.

183. Which of the following are cheapest memory devices in term of Cost/Bits?
a. Semiconductor memory
b. Magnetic disk
c. Compact disk
d. Magnetic tape
Answer: d. Magnetic tape is the cheapest.

184. High density sided floppy disks could store of data
a. 1.40 MB
b. 1.44GB
c. 1.40 GB
d. 1.44 MB
Answer: d. High-density floppies store 1.44 MB.

185. One of the popular mass storage device is CD ROM
a. Compactable Read Only Memory
b. Compact Data Read Only Memory
c. Compact Disk Read Only Memory
d. Compatible Disk Read Only Memory
Answer: c. CD-ROM stands for Compact Disk Read Only Memory.

186. Which of the following memory medium is not used as main memory system?
a. Magnetic core
b. Semiconductor
c. Magnetic tape
d. Both a and b
Answer: c. Magnetic tape is not main memory.

187. The difference between memory and storage is that memory is and storage is
a. Temporary, Permanent
b. Permanent, temporary
c. Slow, fast
d. All of above
Answer: a. Memory is temporary; storage is permanent.

188. Reading data is performed in magnetic disk by
a. Read/write leads
b. Sectors
c. Tracks
d. Lower surface
Answer: a. Read/write heads perform reading.

189. Which of the following is a secondary memory device?
a. Keyboard
b. Disk
c. ALU
d. All of the above
Answer: b. A disk is secondary memory.

190. The word length of a computer is measured in
a. Bytes
b. Bits
c. Milimeter
d. Meter
Answer: b. Word length is measured in bits.

191. A group of magnetic tapes, videos or terminals usually under the control of one master is?
a. Cylinder
b. Surface
c. Track
d. Cluster
Answer: d. This is a cluster.

192. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time
a. Bus control
b. Interrupts
c. Bus attributes
d. Status
Answer: a. Bus control pins regulate traffic.

193. The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as
a. Magnetic core memory
b. Magnetic tape memory
c. Magnetic disk memory
d. Magnetic bubble memory
Answer: d. Magnetic bubble memory fits this description.

194. The metal disks, which are permanently housed in, sealed and combination free container are called?
a. Hard disk
b. Floppy disk
c. Winchester disk
d. Flexible disk
Answer: c. These are Winchester disks.

195. Which of the following is a storage device?
a. Tape
b. Hard disk
c. Floppy disk
d. All of above
Answer: d. All are storage devices.

196. Which of the following is not used as a secondary storage?
a. Semiconductor
b. Magnetic drum
c. Magnetic disk
d. Magnetic tapes
Answer: a. Semiconductors are primary memory.

197. Which statement is valid about magnetic tape?
a. It is a plastic ribbon
b. It is coated on both sides with iron oxide
c. It can be erased and reused
d. All of above
Answer: d. All statements are valid.

198. An input/output device at which data enter or leaves a computer system is
a. Keyboard
b. Terminal
c. Printer
d. Plotter
Answer: b. A terminal handles I/O.

199. The width of a processor's data path is measured in bits. Which of the following are common data path?
a. 8 bits
b. 12 bits
c. 16 bits
d. 32 bits
Answer: d. 32 bits is a common data path.

200. Set of programs which consist of full documentation
a. Software package
b. System software
c. Utility software
d. File Package
Answer: a. This is a software package.

201. Interpreter is used as a translator for
a. Low level language
b. High level language
c. COBOL
d. C
Answer: b. Interpreters translate high-level languages.

202. What do you call a specific instruction designed to do a task
a. Command
b. Process
c. Task
d. Instruction
Answer: d. It is called an instruction.

203. They normally interact with the system via user interface provided by the application software
a. Programmers
b. Developers
c. Users
d. Testers
Answer: c. Users interact via the interface.

204. MIS is designed to provide information needed for effective decision making by?
a. Consumer
b. Workers
c. Foremen
d. Managers
Answer: d. MIS supports managers.

205. Program which is readily available for computer users as a part of software package is called
a. Library program
b. Program library
c. Software library
d. Directory library
Answer: c. This is a software library.

206. The program in execution is
a. Thread
b. Process
c. Software
d. BIOS
Answer: b. A running program is a process.

207. Process to exit form computer by giving correct instruction such as 'EXIT' is classified as
a. Log in
b. Process out
c. Process in
d. Log out
Answer: d. This is logging out.

208. System software is the set of programs that enables your computer's hardware device and to work together. software
a. Management
b. Processing
c. Application
d. None of above
Answer: c. System software works with application software.

209. Latency time is
a. Time to spin the needed data under head
b. Time to spin the needed data under track
c. Time to spin data under sector
d. All of above
Answer: a. Latency is time under the head.

210. A normal CD-ROM usually can store up to date?
a. 680 KB
b. 680 Byte
c. 680 MB
d. 680GB
Answer: c. A CD-ROM stores about 680 MB.

211. Another word for a daisy wheel printer
a. Petal printer
b. Golf ball printer
c. Laser printer
d. Line printer
Answer: b. It’s also called a golf ball printer.

212. What is the latest write-once storage media?
a. Digital paper
b. Magneto-optical disk
c. WORM disk
d. CD ROM disk
Answer: c. WORM (Write Once Read Many) is the latest.

213. What is the name of the computer terminal which gives paper printout?
a. Display screen
b. Soft copy terminal
c. Hard copy terminal
d. Plotter
Answer: c. This is a hard copy terminal.

214. A song being played on computer speaker is
a. Hard output
b. Soft output
c. Both hard and soft output
d. None of above
Answer: b. Audio is soft output.

215. The two basic type of record access method are
a. Sequential and random
b. Sequential and indexed
c. Direct and immediate
d. Online and real time
Answer: a. Sequential and random are the basics.

216. Which of the following have the fastest access time?
a. Semiconductor Memory
b. Magnetic Disks
c. Magnetic tape
d. Compact disk
Answer: a. Semiconductor memory is fastest.

217. How many types of storage loops exist in magnetic bubble memory
a. 8
b. 4
c. 16
d. 2
Answer: b. There are typically 4 types.

218. An antivirus application is an example of
a. System software
b. Application software
c. Utility software
d. Compiler
Answer: c. It’s a utility software.

219. Word processor, spreadsheet calculation application are the example of
a. System software
b. Application software
c. Operating system
d. Utility software
Answer: b. These are application software.

220. BIOS stands for
a. Beginners Input Output System
b. Basic Input Operator System
c. Basic Input Output System
d. None of above
Answer: c. BIOS stands for Basic Input Output System.

221. A types of system software that controls a particular types of device attached to the computer is
a. Device driver
b. Assembler and compiler
c. Operating system
d. System software
Answer: a. This is a device driver.

222. Loading operating system onto RAM is called
a. Printing
b. Saving
c. Booting
d. Starting
Answer: c. This is booting.

223. Program to perform specific task
a. System software
b. Application software
c. Utility software
d. Operating software
Answer: b. This is application software.

224. Which of the following is not utility software
a. Defrag
b. Backup
c. Scan
d. Notepad
Answer: d. Notepad is not a utility.

225. A kind of software design to help analyze, configuration, optimization and maintain the computer is
a. Utility software
b. System software
c. Application software
d. All of above
Answer: a. This is utility software.

226. Which software loads your required application programs so that you can use them
a. Utility software
b. Device driver
c. Assembler and compiler
d. Operating system
Answer: d. The operating system does this.

227. Which of the following windows does not exist
a. Windows XP
b. Windows Vista
c. Windows 2007
d. Windows 8
Answer: c. Windows 2007 does not exist.

228. The operating system is the most common type of software
a. Communication
b. Application
c. System
d. Word-processing software
Answer: c. It’s system software.

229. Example of utility software
a. Virus scanning
b. A letter publisher
c. Word star
d. Both a and b
Answer: a. Virus scanning is a utility.

230. The provides basic interface to the user to use a computer screen
a. Utility software
b. Operating system
c. Device driver
d. All of above
Answer: b. The operating system provides the interface.

231. are list of commands that appear on the screen
a. GUI
b. Icons
c. Menus
d. Windows
Answer: c. These are menus.

232. Linux is an example of
a. Open source
b. Windows
c. Microsoft
d. Mac
Answer: a. Linux is open-source.

233. The primary advantage of key-to-tape data entry system is
a. A large percentage of editing can be performed at the time of data entry
b. Key verification is easily performed
c. The tape is reused
d. Keying error can be detected as they occur
Answer: a. Editing during entry is a key advantage.

234. Which is the limitation of high level language
a. Lower efficiency
b. Machine independent
c. Machine level coding
d. None of above
Answer: a. Lower efficiency is a limitation.

235. Basic is language
a. Procedure
b. An object oriented
c. Both of above
d. None of above
Answer: a. BASIC is a procedural language.

236. Software in computer
a. Enhances the capabilities of the hardware machine
b. Increase the speed of CPU
c. Both of above
d. None of above
Answer: a. Software enhances hardware capabilities.

237. Instruction in computer language consist of
a. Opcode
b. Operand
c. Both of above
d. None of above
Answer: c. Instructions include opcode and operand.

238. Program design to perform specific task is known as
a. System software
b. Application software
c. Utility software
d. Operating software
Answer: b. This is application software.

239. A set of information that defines the status of resource allocated to a process is
a. Process control
b. ALU
c. Register unit
d. Process description
Answer: a. This is process control.

240. Mnemonic a memory trick is used in which of the following language
a. Machine language
b. Assembly language
c. High level language
d. None of above
Answer: b. Mnemonics are used in assembly language.

241. What is the number of read-write heads in the drive for track magnetic tape?
a. 9
b. 16
c. 18
d. 17
Answer: a. Typically 9 heads are used.

242. A computer program that translates one program instruction at a time into machine language
a. Compiler
b. CPU
c. Interpreter
d. Simulator
Answer: c. An interpreter does this.

243. Size of primary memory to PC ranges lies between
a. 2KB to 8kB
b. 64KB to 256 KB
c. 256KB to 640KB
d. None of above
Answer: c. Early PCs had 256KB to 640KB.

244. An application suitable for sequential processing is
a. Payroll processing
b. Processing of grade
c. Both a and b
d. All of above
Answer: c. Both are sequential.

245. A compiler is a translating program which
a. Translate instruction of a high level language into machine language
b. Translates entire source program into machine language program
c. It is not involved in program's execution
d. All of above
Answer: d. All statements apply.

246. What is a compiler?
a. A computer does a conversion line by line as the program is run
b. A computer converts the whole of a higher level program code into machine code in one step
c. A computer is a general purpose language providing very effective execution
d. None of above
Answer: b. A compiler translates in one step.

247. Each model of a computer has a unique
a. Assembly of a computer
b. Machine language
c. High level language
d. All of above
Answer: b. Each has a unique machine language.

248. As compared to the secondary memory, the primary memory of a computer is
a. Large
b. Cheap
c. Fast
d. Slow
Answer: c. Primary memory is faster.

249. Which of the following is machine independent program?
a. High level language
b. Low level language
c. Assembly language
d. Machine language
Answer: a. High-level languages are machine-independent.

250. Developing software means a major commitment of time, money and resource
a. In-house
b. In-sync
c. On-date
d. On-date
Answer: a. In-house development is typical.

251. Which of the following is not a way of acquiring software?
a. Buying pre-written software
b. Ordering customized software
c. Downloading public domain software
d. Duplicating the software
Answer: d. Duplication is illegal.

252. Public Domain software is usually
a. System supported
b. Source supported
c. Community supported
d. Programmed supported
Answer: c. It’s community-supported.

253. Floppy disk are available in
a. Single side single density
b. Single side double
c. Both of above
d. None of above
Answer: c. Both types were available.

254. Circular division of disks to store and retrieve data are known as
a. Tracks
b. Sectors
c. Cycles
d. Rings
Answer: b. These are sectors.

255. Which of the following has a shortest access time?
a. RAM
b. Magnetic bubble memory
c. Cache memory
d. Magnetic Core memory
Answer: c. Cache memory has the shortest access time.

256. The software substituted for hardware and stored in ROM is
a. Synchronous software
b. Package software
c. Firmware
d. Middleware
Answer: c. This is firmware.

257. A "glue" between client & server parts of application.
a. Middleware
b. Firmware
c. Package
d. System software
Answer: a. Middleware acts as the glue.

258. MOM stands for?
a. Message oriented middleware
b. Mails oriented middleware
c. Middleware of message
d. Main object middleware
Answer: a. MOM stands for Message Oriented Middleware.

259. Storage of firmware is
a. Cache memory
b. RAM
c. ROM
d. All of above
Answer: c. Firmware is stored in ROM.

260. A software that lies between the OS and the application running on it
a. Firmware
b. Middleware
c. Utility software
d. Application software
Answer: b. This is middleware.

261. A type of middleware that allows the built in applications and the real time OS?
a. Firmware
b. Database system
c. Portals
d. Embedded Middleware
Answer: d. Embedded Middleware fits this.

262. Software that allows a user to test it for an initial trial period are no charge
a. Shareware
b. Groupware
c. Trial ware
d. freeware
Answer: c. Trial ware offers a trial period.

263. What is the other name for object middleware?
a. Object request interface
b. Object enable interface
c. Object Request broker
d. Object enable broker
Answer: c. It’s an Object Request Broker.

264. The calls certain procedures on remote systems and is used to perform synchronuous interaction between systems.
a. RProcedure
b. RPC
c. Message Oriented
d. DB
Answer: b. RPC (Remote Procedure Call) does this.

265. What is the high speed memory between the main memory and the CPU called?
a. Register Memory
b. Cache Memory
c. Storage Memory
d. Virtual Memory
Answer: b. This is cache memory.

266. Whenever the data is found in the cache memory it is called an
a. HIT
b. MISS
c. FOUND
d. ERROR
Answer: a. A cache hit occurs when data is found.

267. LRU stand for
a. Low Rate Usage
b. Least Rate Usage
c. Least Recently Used
d. Least Required Used
Answer: c. LRU stands for Least Recently Used.

268. When the data at a location in cache in different from the data located in the attain memory, the cache is called
a. Unique
b. Inconsistent
c. Variable
d. Fault
Answer: b. This is an inconsistent cache.

269. Which of the following is not write policy to avoid Cache Coherent?
a. Write through
b. Write Within
c. Write back
d. Buffered write
Answer: b. Write Within is not a standard policy.

270. Which of the following is an efficient method of cache updating?
a. Snoppy writes
b. Write through
c. Write within
d. Buffered write
Answer: b. Write through is efficient.

271. In in the Cache Memory mapping, the data can be mapped anywhere
a. Associative
b. Direct
c. Set
d. Block
Answer: a. Associative mapping allows any mapping.

272. The number of sign bits in a 32 bit IEEE format is
a. 1
b. 11
c. 9
d. 23
Answer: a. IEEE 32-bit format has 1 sign bit.

273. The transfer between CPU and Cache is
a. Block transfer
b. Word transfer
c. Set transfer
d. Associative transfer
Answer: a. It’s a block transfer.

274. The personnel who deals with the computer and its management put together are called
a. Software
b. Human ware
c. Firmware
d. Hardware
Answer: b. They are human ware.

275. Verification of login name and password is known as
a. Configuration
b. Accessibility
c. Authentication
d. Logging in
Answer: c. This is authentication.

276. The stored on a ROM chip, is responsible for loading the operating system from its permanent location on the hard drive into RAM
a. BIOS
b. API
c. Device driver
d. Supervisor program
Answer: a. BIOS handles this.

277. Different component of the motherboard of a PC Unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
a. Conductors
b. Buses
c. Connectors
d. Consecutives
Answer: b. These are buses.

278. What is the path from which data flow in a computer system is known as
a. Car
b. Bus
c. Truck
d. Road
Answer: b. Data flows via a bus.

279. Which among the device those convert computer output into a form that can be transmitted over a telephone line?
a. Teleport
b. Multiplex
c. Concentrator
d. Modem
Answer: d. A modem does this.

280. RATS stands for
a. Regression Analysis Time Series
b. Regression Analysis Time Sharing
c. Real Analysis Series
d. All of above
Answer: a. RATS stands for Regression Analysis Time Series.

281. A metal disks, which are permanently housed in, sealed and combination free containers are called
a. Hard disk
b. Floppy disk
c. Winchester disk
d. Flexible disk
Answer: c. These are Winchester disks.

282. In an absolute loading schema, which loader function is accomplished by programmer?
a. Linking
b. Allocation
c. Both a and b
d. Reallocation
Answer: b. Allocation is done by the programmer.

283. Specialized program that allows user to utilize in specific application is classified as
a. Relative program
b. Application program
c. Relative program
d. Replicate program
Answer: b. This is an application program.

284. Example of system program includes
a. Operating system of computer
b. Trace program
c. Compiler
d. All of above
Answer: d. All are system programs.

285. Translator for low level programming language were termed as
a. Assembler
b. Compiler
c. Linker
d. Loader
Answer: a. Assemblers translate low-level code.

286. The translator which perform macro expansion is called a
a. Macro processor
b. Macro pre-processor
c. Micro pre-processor
d. Assembler
Answer: a. This is a macro processor.

287. A program in execution is called
a. Process
b. Instruction
c. Procedure
d. Function
Answer: a. It’s a process.

288. Assembler is a machine dependent, because of?
a. ALA
b. Linker
c. POT
d. MDT
Answer: Not applicable (context unclear). Assemblers depend on machine architecture.

289. Macro processor is an inbuilt function of
a. Loader
b. Linker
c. Assembler
d. Editor
Answer: c. It’s part of an assembler.

290. When referring to instruction words, a mnemonic is:
a. A short abbreviation for the operand address
b. A short abbreviation for the operation to be performed
c. A short abbreviation for the data word stored at the operand address
d. Shorthand for machine language
Answer: b. A mnemonic abbreviates the operation.

291. How many bytes are there in a terabytes?
a. 1000
b. 1 billion
c. 1 trillion
d. 1 million
Answer: c. 1 terabyte is 1 trillion bytes.

292. are the data contents on which the operation are to be performed.
a. Opcodes
b. Operands
c. Process
d. Instruction
Answer: b. Operands are the data contents.

293. 16 bit is equal to
a. 1 word
b. 2 byte
c. 1 character
d. Both a and b
Answer: d. 16 bits equal 1 word and 2 bytes.

294. Which of the following is in correct form
a. Input> Output> Process> Storage
b. Input> Process> Storage> Output
c. Input> Process>Output>Storage
d. Input>Storage>Process> Output
Answer: c. The correct order is Input > Process > Output > Storage.

295. Modern computer are very reliable but they are not
a. Fast
b. Powerful
c. Infallible
d. Cheap
Answer: c. Computers are not infallible.

296. The term gigabyte refers to
a. 1024 byte
b. 1024 Kilobyte
c. 1024 mega byte
d. 1024 giga byte
Answer: c. 1 gigabyte is 1024 megabytes.

297. The basic operation performed by computer are
a. Arithmetic operation
b. Logical operation
c. Storage and relative
d. All of above
Answer: d. All are basic operations.

298. The two major types of computer chips
a. External memory chip
b. Primary memory Chip
c. Microprocessor chip
d. Both b and c
Answer: d. Primary and microprocessor chips are major types.

299. A computer need
a. Hardware
b. Software
c. Both a and b
310. The gate is either
a. A NAND or an EX-OR
b. An OR or an EX-NOR
c. An AND or an EX-OR
d. A NOR or an EX-NOR
Answer: Not determinable without context. This depends on the specific gate being described; no single answer is universally correct.

311. The NOR gate output will be high if the two inputs are
a. 00
b. 01
c. 10
d. 11
Answer: a. 00 A NOR gate outputs high only when both inputs are low (0).

312. Which of the following is use for commercial gate?
a. OR
b. AND
c. XOR
d. NAND
Answer: Not determinable without context. Any of these gates can be used commercially depending on the application.

313. If the decimal number is a fraction then its binary equivalent is obtained by ___
a. Dividing
b. Multiplying
c. Adding
d. Subtracting
Answer: b. Multiplying To convert a decimal fraction to binary, multiply by 2 and take the integer part iteratively.

314. The binary equivalent of the decimal number 1 is
a. 0010
b. 10
c. 011
d. 010
Answer: b. 10 The decimal number 1 in binary is 10.

315. The human readable version of a program is called
a. Instruction set
b. Object code
c. Source code
d. Software
Answer: c. Source code This is the human-readable form of a program.

316. Which of the following is a low level language?
a. Natural language
b. BASIC
c. Machine language
d. COBOL
Answer: c. Machine language Machine language is considered a low-level language.

317. What does symbol C: represent in hexadecimal number?
a. 12
b. 13
c. 14
d. 10
Answer: a. 12 In hexadecimal, C represents the decimal value 12.

318. The maximum number of bit sufficient to represent an octal number in binary is
a. 4
b. 3
c. 7
d. 8
Answer: b. 3 An octal digit (0-7) can be represented with 3 bits in binary (e.g., 7 = 111).

319. What is the 1s complement of 100111?
a. 011000
b. 100111
c. 101001
d. 011001
Answer: a. 011000 The 1s complement is obtained by inverting all bits (0 to 1, 1 to 0).

320. What is the 2s complement of 1010101?
a. 0101010
b. 0101011
c. 101010
d. 1010100
Answer: b. 0101011 The 2s complement is the 1s complement (101010) plus 1, resulting in 0101011.

321. Which of the following is LSB of given number 1234567?
a. 1
b. 7
c. 6
d. 2
Answer: b. 7 The least significant bit (LSB) is the rightmost digit, which is 7 in decimal context here.

322. What is Unicode?
a. Represents symbols or characters used in any language
b. Only few language are supported
c. Supports only few characters
d. Characters from A to Z
Answer: a. Represents symbols or characters used in any language Unicode is a universal character encoding standard.

323. Convert 67 octal to hexadecimal
a. 34
b. 38
c. 37
d. 73
Answer: b. 38 Convert 67₈ to binary (110 111), then to hexadecimal (38₁₆).

324. A family of polynomial block codes designed to correct burst errors is known as
a. Bar codes
b. Gray codes
c. Fire codes
d. Mnemonic codes
Answer: c. Fire codes Fire codes are designed to correct burst errors.

325. The computer code for interchange of information between terminals is
a. BCDIC
b. BCD
c. ASCII
d. None of above
Answer: c. ASCII ASCII is widely used for this purpose.

326. How many bit code is used by Murray code for TELEPRINTER machines
a. 4
b. 5
c. 9
d. 25
Answer: b. 5 The Murray code (predecessor to ASCII) uses 5 bits.

327. The ASCII codes for Is
a. 106
b. 105
c. 74
d. 75
Answer: b. 105 The ASCII code for 'i' is 105.

328. The ASCII code for "a" is
a. 65
b. 97
c. 74
d. 75
Answer: b. 97 The ASCII code for lowercase 'a' is 97.

329. Building block of digital system?
a. Computer system
b. Database system
c. Logic gates
d. Digital wave
Answer: c. Logic gates Logic gates are the fundamental building blocks of digital systems.

330. Which gates is complement of logical addition operation
a. NAND
b. NOR
c. XNOR
d. XOR
Answer: b. NOR NOR is the complement of logical OR (addition).

331. What is the full form of NTFS, in : Information Technology?
a. Nepal Tech Interchange Strategy
b. National Tech Interchange Strategy
c. Nepal Trade Integration Strategy
d. Nepal Trade Integrated Strategy
Answer: c. Nepal Trade Integration Strategy

332. When were latest National Information and Communication Technology Policy was established?
a. 2000 AD
b. 2005 AD
c. 2010 AD
d. 2015 AD
Answer: d.2015A D

333. How many chapter does it describes in Electronic Transaction Act, 2063?
a. 10
b. 12
c. 13
d. 14
Answer: Not determinable without legal text. The Electronic Transaction Act, 2063 (Nepal) requires specific reference. Offer to search: Would you like me to search for the chapter count?

334. The ASCII value for digit 8 is
a. 47
b. 48
c. 56
d. 57
Answer: b. 48 The ASCII value for the digit '8' is 48.

335. Computer instruction written with the use of English word instead of binary machine code is
a. Mnemonic
b. Symbolic code
c. Gray code
d. Op-code
Answer: a. Mnemonic Mnemonics use English-like words for instructions.

336. EBCDIC can code up to how many different characters?
a. 8
b. 16
c. 64
d. 256
Answer: d. 256 EBCDIC (Extended Binary Coded Decimal Interchange Code) uses 8 bits, allowing 256 characters.

337. Convert Hexadecimal (5A)₁₆ number into binary?
a. 10010111
b. 11001011
c. 11001
d. 10100111
Answer: a. 10010111 Convert 5A₁₆ to binary: 5 = 0101, A (10) = 1010, so 01011010.

338. The combination of Text, Image, Video, Graphics, Animation is called
a. Hypertext
b. Hypermedia
c. Multimedia
d. Social media
Answer: c. Multimedia This combination is known as multimedia.

339. Which gates generate true output if the input is odd otherwise output is false
a. XOR
b. XNOR
c. AND
d. NAND
Answer: a. XOR An XOR gate outputs true (1) for an odd number of 1s in inputs.

340. The combination of NOT and AND gate is
a. NOR
b. OR
c. XOR
d. NAND
Answer: a. NOR A NOR gate combines NOT and OR functionality.

341. Which gates is known as generator
a. NOR
b. OR
c. NAND
d. AND
Answer: Not determinable without context. Any gate can be a "generator" depending on the circuit; typically, NAND is universal.

342. Which gate is represented by dot sign
a. AND
b. OR
c. NOT
d. NAND
Answer: a. AND The dot sign (•) often represents the AND operation.

343. Convert BCA into octal
a. 5617
b. 5781
c. 5718
d. None
Answer: d. None BCA (binary, decimal, or hex?) needs clarification. Assuming hexadecimal BCA₁₆ = 2982₁₀, octal conversion is 5616₈, not listed. Offer to search: Please clarify the base of BCA.

344. Who invented 0 in number system 18th century
a. Alkha warism
b. William Ritual
c. Alex Watson
d. George Floyd
Answer: a. Alkha warism (likely Al-Khwarizmi) is credited with early work on zero, though its use predates the 18th century. Note: Zero was introduced earlier; 18th century may be a typo. Offer to search: Would you like me to verify?

345. Convert 12.25 into binary
a. 1100.001
b. 1100.10
c. 1100.01
d. 1101.10
Answer: a. 1100.001 12₁₀ = 1100₂, 0.25 × 2 = 0.5 (0), 0.5 × 2 = 1.0 (1), so 0.001₂.

346. Which number system is position number system
a. Fraction
b. Decimal
c. Roman
d. Trigonometry
Answer: b. Decimal The decimal system is position-based.

347. In Nepal, National ICT Day was organized in ___
a. May1
b. May2
c. May 17
d. May 21
Answer: c. May 17 This is recognized as World Telecommunication and Information Society Day, often aligned with Nepal's ICT Day.

348. Digital framework system consist of ___ sector in Nepal
a. 4
b. 8
c. 7
d. 6
Answer: Not determinable without context. Requires specific policy data. Offer to search: Would you like me to search for Nepal's digital sectors?

349. Which number system s stored in ENIAC computer
a. Binary
b. Hexadecimal
c. Decimal
d. Octal
Answer: c. Decimal ENIAC used decimal representation.

350. Convert 10101011 into hexadecimal
a. AB
b. BC
c. AC
d. A3
Answer: a. AB 10101011₂ = A (1010) B (1011)₁₆.

351. Convert 724 decimal number into hexadecimal
a. 24D
b. 4D2
c. 2D4
d. 2D6
Answer: c. 2D4 724₁₀ ÷ 16 = 45 remainder 4, 45 ÷ 16 = 2 remainder 13 (D), so 2D4₁₆.

352. Convert 311 octal number into hexadecimal number
a. A9
b. B9
c. C9
d. C8
Answer: b. B9 311₈ = 3×64 + 1×8 + 1 = 193₁₀, 193₁₀ = B9₁₆.

353. Convert 123 octal into binary
a. 1010011
b. 1101100
c. 1010001
d. 1100111
Answer: b. 1101100 1×64 + 2×8 + 3×1 = 83₁₀, 83₂ = 1101100₂.

354. 2’s complement of -7 is
a. 0111
b. 1000
c. 1111
d. 1001
Answer: d. 1001 7 = 0111₂, 1s complement = 1000₂, 2s complement = 1001₂.