Manual Computer Science: An Overview 13th Edition Exam Questions and Correct Answers

MANUAL COMPUTER SCIENCE AN OVERVIEW 13TH
EDITION QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) Q&A 2026 |INSTANT DOWNLOAD
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1. What is the main purpose of an operating system?
A. To compile programs
B. To manage hardware and software resources
C. To design websites
D. To store user documents
Rationale: An operating system controls and coordinates
computer hardware and software resources.
Correct answer: B


2. Which of the following is an example of system software?
A. Microsoft Word
B. Google Chrome
C. Linux
D. Photoshop
Rationale: System software includes operating systems like
Linux.
Correct answer: C

,3. What does CPU stand for?
A. Central Processing Unit
B. Computer Primary Unit
C. Central Program Utility
D. Control Processing User
Rationale: CPU is the central processing unit of a computer.
Correct answer: A


4. Which memory is volatile?
A. ROM
B. Hard Disk
C. RAM
D. Flash Drive
Rationale: RAM loses data when power is turned off.
Correct answer: C


5. What is an algorithm?
A. A programming language
B. A step-by-step solution to a problem
C. A computer virus
D. A hardware component
Rationale: Algorithms define logical steps to solve problems.
Correct answer: B

,6. Which number system is used by computers internally?
A. Decimal
B. Binary
C. Octal
D. Hexadecimal
Rationale: Computers process data in binary (0s and 1s).
Correct answer: B


7. What is a compiler used for?
A. Executing machine code
B. Translating high-level code into machine code
C. Designing hardware
D. Storing files
Rationale: A compiler converts source code into machine code.
Correct answer: B


8. Which of the following is an input device?
A. Monitor
B. Printer
C. Keyboard
D. Speaker
Rationale: Keyboard is used to input data into a computer.
Correct answer: C

, 9. What is the function of RAM?
A. Permanent storage
B. Temporary storage for active processes
C. Data encryption
D. Internet browsing
Rationale: RAM stores data currently in use.
Correct answer: B


10. What does URL stand for?
A. Uniform Resource Locator
B. Universal Routing Link
C. Unified Resource Language
D. User Reference Link
Rationale: URL identifies web addresses.
Correct answer: A


11. Which of the following is NOT an operating system?
A. Windows
B. Linux
C. Oracle
D. macOS
Rationale: Oracle is a database management system.
Correct answer: C