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2. Fill in the blanks using the words from the help box.

Three, ALU, Hardware, CPU Box

a. The ___________ performs all the arithmetic operations in the CPU.
b. A computer works in ___________ simple steps.

c. A physical component of a computer system is known as ___________.
d. A hard disk is fixed inside the ___________.

3. Answer in one or two words.
a. Which device is commonly used for playing games? ____________

b. Which device is known as the brain of a computer? ____________
c. What acts as a manager between the computer and the user? ____________

d. Which software is used for creating presentations? ____________

4. Differentiate between the following:

System Software Application Software
____________________________ ____________________________

____________________________ ____________________________

5. Think and answer.

a. What are Input devices?

_______________________________________________________________________

b. Write any one feature of a computer.
_______________________________________________________________________

c. What is an IPO cycle?

_______________________________________________________________________

_______________________________________________________________________

d. What are Output devices? Write the names of any two output devices.

_______________________________________________________________________
_______________________________________________________________________

21 st
6. Application-based questions. Century #Critical Thinking
Skills
a. Anaya wants to record her song on the computer. Which device should she use?

b. Satvik wants to draw a car on the computer. Which software should he use?

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