Introduction To Computer Science Examination Questions And Correct Answer With Explanation Graded A+ Stdy Guide

INTRODUCTION TO COMPUTER SCIENCE EXAMINATION QUESTIONS AND CORRECT ANSWER
WITH EXPLANATION GRADED A+ STDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY

1. Computer science is the study of:
A. Computers and computation
B. Only typing documents
C. Drawing pictures
D. Only hardware assembly
Answer: A
Rationale: It focuses on computation, algorithms, and systems.

2. Hardware refers to:
A. Physical components of a computer
B. Software programs
C. Internet websites
D. Data files only
Answer: A
Rationale: Hardware includes physical parts.

3. Software is:
A. Programs and instructions
B. Physical devices
C. Computer cables
D. Screens only
Answer: A
Rationale: Software consists of instructions.

4. CPU stands for:
A. Central Processing Unit
B. Computer Processing Unit
C. Control Program Utility
D. Central Program User
Answer: A
Rationale: It is the brain of the computer.

5. RAM is:
A. Temporary memory
B. Permanent storage
C. Input device
D. Output device

, Answer: A
Rationale: It stores data temporarily.

6. ROM is:
A. Read Only Memory
B. Random Output Memory
C. Ready Operating Memory
D. Run Only Memory
Answer: A
Rationale: It stores permanent instructions.

7. Operating system is:
A. System software managing hardware
B. Application software
C. Hardware device
D. Programming language
Answer: A
Rationale: It manages computer resources.

8. Examples of operating systems include:
A. Windows, Linux, macOS
B. MS Word, Excel
C. Chrome, Firefox
D. Python, Java
Answer: A
Rationale: These are system platforms.

9. Input device is used to:
A. Enter data into computer
B. Display output
C. Store files
D. Process data only
Answer: A
Rationale: It feeds data into system.

10. Output device is used to:
A. Show results
B. Enter data
C. Store data
D. Program software

, Answer: A
Rationale: It displays processed data.

11. Keyboard is an:
A. Input device
B. Output device
C. Storage device
D. Processing unit
Answer: A
Rationale: Used for typing input.

12. Mouse is used to:
A. Point and click
B. Print documents
C. Store data
D. Process data
Answer: A
Rationale: It controls cursor movement.

13. Computer memory stores:
A. Data and instructions
B. Only programs
C. Only hardware
D. Only internet pages
Answer: A
Rationale: Memory holds information.

14. Secondary storage includes:
A. Hard disk, SSD
B. RAM only
C. CPU only
D. Cache only
Answer: A
Rationale: Long-term storage devices.

15. Binary system uses:
A. 0 and 1
B. 1 to 10
C. A to Z
D. Decimal only