Studies Comprehensive Test 2026–2027|
Multiple-Choice Questions with Detailed
Answers And Rationales
6. Which of the following is an example of system software?
A. Microsoft Word
B. Google Chrome
C. Windows Operating System
D. Photoshop
CORRECT ANSWER : C. Windows Operating System
RATIONALE:
C. Windows Operating System is correct because system software manages hardware and
provides a platform for application software.
3. What is the main function of a computer CPU?
A. Store files permanently
B. Process instructions and data
C. Display images
D. Connect to the internet
CORRECT ANSWER : B. Process instructions and data
RATIONALE:
B. Process instructions and data is correct because the CPU is the brain of the computer.
9. Which device is used to permanently store data?
A. RAM
B. Cache memory
C. Hard disk drive
D. CPU
CORRECT ANSWER : C. Hard disk drive
,RATIONALE:
C. Hard disk drive is correct because it stores data permanently even when the computer is off.
1. Which of the following is an input device?
A. Monitor
B. Keyboard
C. Printer
D. Speaker
CORRECT ANSWER : B. Keyboard
RATIONALE:
B. Keyboard is correct because it is used to enter data into the computer.
7. Which of the following best describes the internet?
A. A single computer network
B. A global network of interconnected computers
C. A type of software
D. A storage device
CORRECT ANSWER : B. A global network of interconnected computers
RATIONALE:
B. A global network of interconnected computers is correct because the internet connects
millions of devices worldwide.
4. Which of the following is an example of application software?
A. BIOS
B. Linux Kernel
C. Microsoft Excel
D. Operating System
CORRECT ANSWER : C. Microsoft Excel
RATIONALE:
C. Microsoft Excel is correct because application software performs specific user tasks.
, 10. Which of the following is used to protect a computer from viruses?
A. Firewall
B. Monitor
C. Keyboard
D. Speaker
CORRECT ANSWER : A. Firewall
RATIONALE:
A. Firewall is correct because it helps prevent unauthorized access and malware attacks.
2. Which unit is responsible for arithmetic and logical operations?
A. Control Unit
B. ALU (Arithmetic Logic Unit)
C. RAM
D. ROM
CORRECT ANSWER : B. ALU (Arithmetic Logic Unit)
RATIONALE:
B. ALU (Arithmetic Logic Unit) is correct because it performs calculations and logical
operations.
8. Which of the following is a web browser?
A. Windows
B. Chrome
C. Excel
D. PowerPoint
CORRECT ANSWER : B. Chrome
RATIONALE:
B. Chrome is correct because it is used to access and browse the internet.
5. Which of the following is volatile memory?