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Yr7- Understanding computers Lessons 1-3

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

What is Hardware?

a)

Programmes you instal onto a computer

b)

Physical components you can touch of a computer

c)

Components of the computer you are unable to touch

d)

The process that the computer carries out.

2.

What type of device is this? (Printer)

a)

Input

b)

Output

3.

What type of device is this? (Projector)

a)

Input

b)

Output

4.

What type of device is this? (Microphone)

a)

Input

b)

Output

5.

What type of device is this? (Mouse)

a)

Input

b)

Output

6.

What type of device is this? (Smartphone screen)

a)

Input

b)

Output

c)

Input and Output

7.
What is the purpose of the CPU?
a)
To process all the data and instructions.
b)
To turn the computer on.
c)
To create PowerPoint presentations.
d)
To provide power to the computer.
8.
CPU stands for
a)
Computer Processing Unit
b)
Central Processing Unit
c)
Core Processing Unit
d)
Central Power Unit
9.

The CPU fetches instructions from.... and executes those instructions.

a)

Memory

b)

ALU

c)

ROM

d)

Input Device

10.
CPU carries out a cycle called___. 
a)
Execute-decote-fetch
b)
Fetch-decode-execute
c)
Fetch-execute-decode
d)
Decode-execute-fetch
11.
What does ROM stand for?
a)
Random Only Memory
b)
Random Only Memory
c)
Rapid Only Machine
d)
Read Only Memory
12.
What does RAM stand for?
a)
Random Access Memory
b)
Random Area Machine
c)
Real Access Machine
d)
Rapid Access Memory
13.

ROM Vs RAM: What is used to boot up the computer when it is switched on...

a)

RAM

b)

ROM

14.

What does volatile mean?

a)

Data is lost when the power is turned off

b)

Data is NOT lost when the power is turned off

15.

What is processor speed measured in?

a)

Hertz

b)

Watts

c)

Amps

d)

Volts

16.
ROM is non-volatile memory
a)
True
b)
False
17.
What happens at the Decode step of the fetch-decode-execute cycle?
a)
The CPU makes sense of the instructions.
b)
The CPU fetches the information from RAM.
c)
The instructions are executed.
18.
What are these?
a)
Tower
b)
Motherboard
c)
Harddrive
d)
RAM memory
19.
Identify this computer part.
a)
CPU
b)
hard disk drive
c)
RAM module
d)
motherboard
20.
What happens if you don't have enough RAM?
a)
Your computer will slow down because it has to load everything from the Hard Drive
b)
Your computer will speed up
c)
You won't get much wool from your sheep
d)
Your computer will run out of Hard Drive Space

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