A. Projector
B. Keyboard
C. Scanner
D. Printer
✅ The correct answer is option B.
Basics of Computer Science MCQs
Strengthen your fundamental knowledge with our Basics of Computer Science MCQs with answers and explanations. Our collection covers key topics such as computer fundamentals, hardware and software, operating systems, networking basics, databases, programming concepts, and internet technologies. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, university entry tests, and IT job assessments. Practice online to improve your understanding, enhance problem-solving skills, and excel in exams with our updated Basics of Computer Science MCQs
52. An advantage of overlapped processing activities is:
A. more effective use of the CPU
B. increased processing activities for the entire system
C. better coordination of I/O activities
D. all the above
✅ The correct answer is option D.
53. The ALU of a computer normally contains a number of high speed storage elements called
A. semiconductor memory
B. registers
C. hard disk
D. magnetic disk
✅ The correct answer is option B.
54. The daily processing of corrections to customer accounts best exemplifies the processing mode of:
A. Batch processing
B. Real-time processing
C. Time-sharing
D. Offline processing
✅ The correct answer is option A.
55. Which system was developed by Rank-Xeron for use with office computers and other equipment.
A. UNIX
B. ETHERNET
C. PC-DOS
D. MS-DOS
✅ The correct answer is option B.
56. A temporary storage area, attached to the CPU, for I/O operations is a:
A. chip
B. buffer
C. register
D. core
✅ The correct answer is option B.
57. Transistorized computer circuits were introduced in the
A. first generation
B. second generation
C. thir4 generation
D. fourth generation
✅ The correct answer is option B.
58. The MS-DOS operating system is a …..
A. graphical user interface, single-tasking operating system
B. graphical user interface, multi-tasking operating system
C. command-driven interface, single-tasking operating system
D. command-driven interface, multi-tasking operating system
✅ The correct answer is option C.
59. When customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as:
A. A virus
B. A Trojan Horse
C. Cracking
D. A denial of service attack.
✅ The correct answer is option D.
60. Which language has been selected as the basis for the Japanese “fifth generation” computers.
A. ALGOL
B. COBOL
C. PROLOG
D. C
✅ The correct answer is option C.