Class-4 Subject -Computer Unit Test-2

Shamrock Prerna School

Class-4

Unit Test -2

M. M=10

Q.1)Tick (√) the correct option.    (¼×3=¾)

1.Devices which take inputs from users are called ______ devices.

• storage
• none
• input
• output

2. Voltmeter is an example  of a ______ computer.

• digital
• hybrid
• analog
• all of these

3. CPU is a ______  device.

• processing
• output
• input
• storage

Q. 2) Fill in the blanks.   (¼×2=½)

1. The ______ are the biggest and the most powerful computers.
2. _______ is the main processing device of the computer.

Q. 3) Write T for true and F for false statements.  (¼×3=¾)

1. The full form of CPU is Central Power Unit.
2. The supercomputers are the most powerful computers.
3. Printer is an input device of a computer.

Q.4) Define the following.   (1×4=4)

1. Minicomputer
2. Hybrid Computer
3. Supercomputers
4. Digital Computers

Q.5) Answer the following questions.   (2×2=4)

1. What is a computer?
2. What are input and output devices?