WorksheetsCPU
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
what does CPU stand for ?
a)
central posting utility
b)
central processing unit .
c)
CPU
d)
central popping untint
2.
The CPU fetches instructions from.... and executes those instructions.
a)
Memory
b)
ALU
c)
ROM
d)
Input Device
3.
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.
4.
The CPU is often refered to as
a)
The heart of the computer
b)
The brains of the computer
c)
The main part of the computer
d)
The memory of the computer
5.
Inside the CPU, you will find:
a)
ALU, CU, registers, cache memory
b)
ADU, PC, storage, RAM memory
c)
ARM, PC, controller, cache memory
d)
APM, CU, time signal, RAM memory
6.
What does it mean if a CPU is quad-core?
a)
The CPU has 6 cores
b)
The CPU can perform 4 operations at the same time
c)
The physical processor chip has 4 duplicate CPUs built in
d)
There are 4 physically separate processor chips
7.
Which of these characteristics of a computer system affects the performance of a CPU?
a)
The number of external peripherals
b)
The number of comments in code
c)
The number of secondary storage devices
d)
The number of cores
8.
Why does increasing the number of cores increase the speed of the CPU?
a)
The clock ticks more quickly allowing the fetch, decode, execute cycle to operate more quickly
b)
More than one instruction can be executed at the same time
c)
Frequently used instructions and data can be held in the CPU
d)
There is a reduced requirement for RAM
9.
What is the main advantage of the cache on board the CPU?
a)
Allows calculation to be performed on the CPU
b)
Allows sharing of data between registers
c)
Fast access to frequently used instructions and data without having to go to RAM.
d)
Allows for two way communication between the CPU and RAM
10.
Why does having a very large cache not give a big performance increase for the CPU?
a)
Instructions are not always sequential
b)
A large cache would need to be made of lower grade, cost effective components
c)
A large cache is more unreliable
d)
It will take more time to fetch the data in a large cache
11.
Why does having a small cache increase the speed of the CPU?
a)
Programs do not need to be executed from the hard disk
b)
Frequently used instructions and data are already in the CPU and are not fetched again from RAM
c)
The cache is another register that can be used
d)
There is no need to transfer binary between the accumulator and memory address register
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