Important Computer MCQs For Competitive Exams part-1 | Set 6
1. Another word for a daisy when printer is
Correct : A. petal printer
2. The collection of utility programs, subroutines or application programs used on a particular computer is
Correct : D. program library
3. All the instructions and procedures needed to start Up a computer, to the point it can load an operating system are stored in ROM chips. In IBM compatible PCs this is called the
Correct : B. ROM BIOS
4. In serial, asynchronous transmissions, the bit
is used to signal the end of the character within the data frame.
Correct : B. Stop
5. The term MIPS refers to
Correct : A. millions of instructions per second
6. Which of the following best describes the term data processing?
Correct : C. The manipulation of information or data
7. The original ASCII code used./. bits of each byte, reserving that last bit for error checking.
Correct : C. 7
8. Communication ports are found on the back of microcomputers. They are used to connect the computer to
Correct : D. All of these
9. What is a portion of memory that serves as a temporary repository for data as it waits for a given action?
Correct : B. Cache
10. What process prepares the magnetic surface of a disk by creating concentric circles, called tracks, around the disk? (Each track is further divided into pic-shaped sections called sectors?
Correct : B. Formatting
11. A six-digit card field used for postal ZIP codes is defined as
Correct : C. a numeric field
12. What are the three decision-making operations performed by the ALU of a computer?
Correct : D. All of these
13. Which part of the computer is used for calculating and comparing?
Correct : C. ALU
14. Can you tell what passes into and out from the computer via its ports?
Correct : B. Bytes
15. Which type of computers use the 8 bit code called EBCDIC?
Correct : C. Mainframe computers
16. Whereas a computer mouse moves over the table surface, the trackball is
Correct : A. stationary
17. Which one of the following input device is user-programmable?
Correct : D. Intelligent terminal
18. The computer-memory holds data and
Correct : B. program
19. The checking operation performed on input
data is called the
Correct : A. validation of data
20. The larger the RAM of a computer, the faster its processing speed is, since it eliminates
Correct : C. frequent disk I/Os
21. The temporary or volatile memory of a computer is erased when the computer is turned off. Accordingly, the computer user before turning off the machine must transfer anything in the memory which is important to
Correct : D. permanent memory
22. Which of the following tasks is not suited for sequential processing by a computer?
Correct : D. Inventory control
23. The most expensive component in a
computer system is its
Correct : E. None of these
24. What is the name of the meftiory card which is conceptually related to the smart card but is similar to the video disk?
Correct : A. Laser card
25. The time taken for the read/write head to move to the correct track on the magnetic disk is called
Correct : C. seek time
26. A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?
Correct : C. Film card
27. Which of the following printer can be classified as a page-at-a-time printer?
Correct : A. Laser printer
28. What is the function of the ‘home key1in a
microcomputer qwerty keyboard?
Correct : B. To reposition the cursor
29. Most of the errors blamed on computers are actually due to
Correct : D. data entry errors
30. File specification books are created primarily for the use of
Correct : B. programmers
31. The storage within the addressing scheme of the computer but exceeding the physical capacity is called
Correct : A. address space
32. Plotters print
Correct : D. All of these
33. Which generation of computers used transistors?
Correct : B. Second generation
34. In MODEMS
Correct : B. a digital signal changes some characteristic of a carrier wave
35. In digital data transmission
Correct : E. None of these
36. Information retrieval is fastest from
Correct : C. hard disc
37. The process of entering data into a storage location
Correct : B. cause variation in its address number
38. Which of the following topologies is highly reliables?
Correct : C. Fully connected mesh
39. Which of the following topologies is not broadcast type?
Correct : C. Ring
40. A magnetic tape volume that is used on a data processing operation without any change to its contents is
Correct : C. master tape
41. A device that both transmits and receives data, is
Correct : D. transceiver
42. Which of the following is an abbreviation for a hardware programming language?
Correct : A. AHPL
43. Which of the following is a mechanism for separating continuous fan folded paper used in fine printers?
Correct : B. Burster
44. A group of signal lines used to transmit data in parallel from one element of a computer to another is
Correct : C. databus
45. Allocator and manager of memory in an operating system is
Correct : C. kernel
46. A used defined block of pixels that can be placed anywhere on the screen is
Correct : A. sprite
47. In acquiring new mainframe hardware, an
organization
Correct : C. may lease a machine in order to avoid a large purchase price
48. Which of the following is not a factor affecting the processing capability or performance of a PC system?
Correct : B. The revolution per minute of the printer disk
49. Super-computers
Correct : D. are not fast enough for some applications
50. Which hole is used to mark the location of the first sector in a soft-sectored disk?
Correct : C. Index
51. A data item which is not broken down into smaller units is
Correct : B. elementary data item
52. A language based on graphics for use in education is
Correct : B. LOGO
53. Codes which do not require to be frequently updated also promote user efficiency due to
Correct : C. stability
54. Which of the following is a data communication link that connects more than two stations, nodes, etc.?
Correct : B. Multipoint line
55. Which of the following is a particular form
of magnetic tape cartridge?
Correct : C. Digital cassette
56. The ability of a subsystem to be substituted for the originally designated equipment is
Correct : B. compatibility
57. A machine associated with card-based data processing is
Correct : B. Collator
58. Which is computer input microfilm?
Correct : A. CIM
59. A framework in which circuit boards can be mounted is
Correct : A. card cage
60. Which memory is used in high-performance systems, inserted between the processor and memory?
Correct : C. Cache
61. A hardware used for virtual memory allocation is
Correct : B. base-bound register
62. A type of memory chip whose contents cannot be altered by writing data is
Correct : C. ROM
63. The shifting of a program from one of the memory addresses to another is
Correct : C. relocation
64. The amount of time that is taken up in getting data from a disk is
Correct : D. latency
65. Most computers understand programs written in
Correct : A. natural English language
66. A subset of characters within a data field is known as
Correct : C. data string
67. The process used to set up a program once the system is operational is
Correct : C. boot strap
68. Which is special register which holds machine instructions?
Correct : C. Control instruction register
69. Which is a programming language for military applications?
Correct : B. CORAL
70. A way of checking the data have been moved or stored correctly is
Correct : C. parity
71. An input device with a joystick is
Correct : B. paddle
72. is a large computer of which peripherals are mounted in a frame.
Correct : B. Main frame
73. Translator of a high-level language into the object code is called
Correct : C. compiler
74. An assembly language is a division of
Correct : B. low-level language
75. A built-in number that identifies a location in storage is known as
Correct : C. address
76. A sequence of one or more characters is
Correct : B. string
77. A sizeable geographical area with communication based on the telephone system is through a
Correct : B. wide area network
78. The methods used by COBOL to define that structure of a data item in terms of characters, digits, etc. is
Correct : C. picture
79. The instruction code in machine language or assembled which specifies the basic operations of the CPU is
Correct : C. opcode
80. One megabyte is
Correct : A. 1048576 bytes
81. A secondary storage device with immediate access to any part of the stored data is
Correct : A. direct access device
82. A computer in which data is represented by a continuously variable physical quantity is
Correct : B. analog computer
83. The basic unit within a computer store capable of holding a single unit of data is
Correct : B. ALU
84. A group of characters used to identify a given low-level instruction is
Correct : D. label
85. A location which is sometimes protected, used for specific purposes only is
Correct : C. register
86. The working principles of today’s computers were provided by an English mathematician
Correct : A. Charles Babbage
87. A group of characters treated as an entity within some computer is a
Correct : C. word
88. A device used to bring information into a computer is
Correct : B. input device
89. The part of a computer system that enables human operators to communicate with the computer is
Correct : C. console
90. A digital device that processes data is known as
Correct : A. data processor
91. The part of the total storage of a computer
from which instructions are executed is
Correct : B. main storage
92. A pen shaped device which can sense light, and is used to point at spots on a video screen is a
Correct : B. light pen
93. Which of the following is a non volatile memory?
Correct : C. magnetic bubble memory
94. Which of the following can be used to control the movement of a cursor on a video screen?
Correct : D. joystick
95. In digital computer, all the expressions are coded into
Correct : B. Binary digits
96. The display size of the typical visual display screen is
Correct : A. 80 columns wide by 24
97. The only language understood by a digital computer is called
Correct : D. Binary language
98. Which operating system was produced by C language?
Correct : C. UNIX
99. A memory that does not change its contents
without external causes is known as