Chapter 1: Introduction to Computers — Online MCQ Test
COMPUTER APPLICATIONS · CLASS 11th · Tamil Nadu State Board
Practice Chapter 1: Introduction to Computers with a free chapter-wise online MCQ test.
This chapter covers: This chapter introduces computer generations characteristics hardware and software components. Students examine central processing units memory units input devices output devices a....
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Chapter 1: Introduction to Computers — Important Questions & Answers
Which device is known as the brain of the computer?
- A. Monitor
- B. Central Processing Unit (CPU)
- C. Keyboard
- D. Printer
Answer: B. Central Processing Unit (CPU)
The CPU processes instructions, controls operations, and performs calculations. Hence, it is called the brain of the computer.
The CPU processes instructions, controls operations, and performs calculations. Hence, it is called the brain of the computer.
Which of the following is an input device?
- A. Speaker
- B. Printer
- C. Mouse
- D. Projector
Answer: C. Mouse
A mouse is used to send data and commands into the computer, so it is an input device.
A mouse is used to send data and commands into the computer, so it is an input device.
Which of the following is a storage device?
- A. Hard disk
- B. Keyboard
- C. Mouse
- D. Scanner
Answer: A. Hard disk
A hard disk stores data and programs permanently, unlike input devices that only send data to the computer.
A hard disk stores data and programs permanently, unlike input devices that only send data to the computer.
What is the main advantage of third generation computers over second generation computers?
- A. They used vacuum tubes instead of transistors
- B. They were larger in size
- C. They used integrated circuits, making them smaller and faster
- D. They required more power consumption
Answer: C. They used integrated circuits, making them smaller and faster
Third generation computers used integrated circuits, which made them more compact, faster, and reliable than second generation computers.
Third generation computers used integrated circuits, which made them more compact, faster, and reliable than second generation computers.
The first generation computers were slow, consumed more power, and produced more heat because they used:
- A. Transistors
- B. Integrated circuits
- C. Vacuum tubes
- D. Microprocessors
Answer: C. Vacuum tubes
Vacuum tubes generated a lot of heat and consumed more electricity, which made first generation computers bulky and inefficient.
Vacuum tubes generated a lot of heat and consumed more electricity, which made first generation computers bulky and inefficient.