WorksheetsNGHS CPU
Total questions: 16
Worksheet time: 10mins
Name
Class
Date
1.
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.
2.
What is the main function of the CPU?
a)
To carry out processing of the data.
b)
To help with playing games.
c)
To fetch instructions from memory, decode them and execute the instructions.
d)
To heat up the computer.
3.
What is the job of the control unit?
a)
It carries out calculations
b)
It stores information.
c)
It does nothing.
d)
It controls the input and output of data to make sure that it gets to the right place.
4.
Which level of cache is the fastest but has the smallest capacity?
a)
Level 1
b)
Level 2
c)
Level 3
d)
Level 4
5.
What are registers used for?
a)
To check that students are in school.
b)
To temporarily hold bits of data needed by the CPU.
c)
To make sure that the CPU runs properly.
d)
To make the CPU faster.
6.
What does CPU stand for?
a)
Control Processing Unit
b)
Central Processing Unit
c)
Central Power Unit
d)
Center Power Unit
7.
How does clock speed affect computer performance?
a)
The higher the clock speed the slower the computer will run.
b)
It improves the amount you can store on the computer.
c)
The higher the clock speed the better the performance.
d)
It will make loading program slower
8.
What is a bus?
a)
A circuit that connect one part of CPU to other components.
b)
A type of long term memory
c)
A type of permanent memory
d)
A method of transport
9.
What is cache memory?
a)
A very large, temporary memory
b)
A very small but expensive memory
c)
It is used to store data and programs permanently
d)
It is a type of payment
10.
The system clock keeps everything synchronised inside the computer
a)
true
b)
FALSE
11.
Clock speed is measures in
a)
bytes
b)
bits
c)
time
d)
hertz
12.
What happens if you increase the number of cores
a)
CPU can process instructions quicker
b)
CPU can process more instructions at the same time
c)
CPU will explode
d)
CPU processes too fast for the cache to handle
13.
Where are the results of calculations stored?
a)
Accumulator
b)
ALU
c)
MDR
d)
CIR
14.
True or False: A CPU with a higher clock speed can process more instructions per second?
a)
True
b)
False
15.
Why does a CPU have a cache?
a)
To store the most commonly used instructions so they are close at hand
b)
to keep the CPU cool
c)
to help save power
16.
True or False: A Cache is a tiny block of memory built right into the processor
a)
True
b)
False
100 %
