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

443. You can use the tab key to

A. Move a cursor across the screen
B. Indent a paragraph
C. Move the cursor down the screen
D. Only A and B
✅ The correct answer is option B.

450. The data bus in 8080A/8085 microprocessor is a group of

A. eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory
B. sixteen bidirectional lines that are used for data transfer between the microprocessor and memory
C. eight unidirectional lines that are used for I/O devices
D. eight lines used to transfer data among the registers
✅ The correct answer is option A.

Scroll to Top