brodidit for students
Introduction to computers
Class 9 · Computer Science · 6 questions
Name: ____________________ Date: ____________
A computer takes data, processes it and gives:
- A Information
- B Only electricity
- C Only sound
- D Only paper
Which of these is an input device?
- A Keyboard
- B Printer
- C Speaker
- D Monitor
Which of these is an output device?
- A Printer
- B Microphone
- C Mouse
- D Scanner
The brain of the computer is the:
- A CPU
- B Hard disk
- C Monitor
- D Mouse
One byte is made up of:
- A 8 bits
- B 2 bits
- C 4 bits
- D 16 bits
Which generation of computers used integrated circuits?
- A None
- B First
- C Third
- D Second
Answer key
1. A, 2. A, 3. A, 4. A, 5. A, 6. C
Input data is processed to produce useful information as output.
A keyboard sends data into the computer.
A printer produces output from the computer.
The CPU carries out instructions and controls the other parts.
1 byte = 8 bits.
Third generation computers used integrated circuits.