Computer Science MCQs Page-7

Computer Science MCQs. Computer Science MCQs for pakistan exams. Computer Basic Basic Computer Knowledge questions with answer (Computer mcqs)  Computer Awareness Questions Answers MCQ Set. These Computer science Mcqs are also beneficial for Preparation of PPSC Test, FPSC Test, SPSC Test,KPPSC Test,BPSC Test,PTS ,OTS   

                             

Computer Science MCQs

61. The most widely used code for representing characters in computers is
(A) ASCII
(B) BCD
(C) EBCDIC
(D) None Of These

62. The type of reader commonly used to read bank cheques is
(A) OPtical-mark reader
(B) Magnetic-ink reader
(C) Bar-code reader
(D) None Of These

63. Which of the following devices stores instructions that help the computer startup?
(A) Keyboard
(B) RAM
(C) ROM
(D) Hard disk

64. The computer can move data and instructions between storage and memory as needed, in a process called
(A) Volatility
(B) Swapping
(C) Pipelining
(D) Exchanging

65. When you press a key, which device notifies the system software?
(A) Keyboard
(B) Keyboard Controller
(C) Keyboard Buffer
(D) Keyboard Handler

66. DOS was introduced by
(A) IBM
(B) Xerox
(C) Microsoft
(D) Bell labs

67. Which of the following operating system is based on open-source software?
(A) UNIX
(B) Windows 2000
(C) Windows NT
(D) Linux

68. The amount of time taken by a device to begin reading data is called
(A) Seek time
(B) Read time
(C) Access time
(D) Write time

69. The RAID technology that contributes to fault tolerance is called
(A) Disk mirroring
(B) Tolerant computing
(C) Data striping
(D) None Of These

70. MAN stands for?
(A) Metropolitan Arranged Network
(B) Marked Area Network
(C) Manufactured Arrangements of Networks
(D) Metropolitan Area Network