WorksheetsCPU
Total questions: 13
Worksheet time: 7mins
The CPU fetches instructions from.... and executes those instructions.
Memory
ALU
ROM
Input Device
The control unit in the CPU does what?
Sets the speed of the operations
controls the input and output of data so it goes to the right place
Controls and monitors the input and output devices
Controls the ALU
The ALU is found inside the CPU True or False?
True
False
What does volatile mean for a computers memory
Data and instructions remain stored even when the computer is switched off
Data and instructions may cause the computer to crash
Data and instructions are lost when the computer is switched off
Which is the fastest kind of memory for the CPU to access?
Random access memory
Level-1 cache memory
Level-2 cache memory
Which of these scenarios is NOT the result of overclocking?
The computer will end up displaying the incorrect time and date
Processes might not be completed before the next instruction is carried out
The CPU could overheat
What is 'cache'?
It stores program operations and data while a program is being executed
It executes programs using the fetch-decode-execute cycle
It is a small amount of memory which is a part of the CPU
What is an algorithm?
A set of step-by-step instructions
Software that analyses data
A hardware device that stores data
What is a variable?
Data that is stored in a memory location, that cannot be changed
Data that is stored in a memory location, that can be changed
Data that is produced by a computer, that cannot be changed
What is pseudocode used for?
To program every piece of software
To plan algorithms using a specific programming language
To plan algorithms using plain English
A: 3 GHz Quad Core CPU
B: 3 GHz Duel Core CPU
