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1609666
THE CPU (and it's limiting factors)
Description
A mind map on the CPU and a bit about how it is limited in a computer system.
No tags specified
computing
computing
gcse
Mind Map by
Joe Farnworth-Mayers
, updated more than 1 year ago
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Created by
Joe Farnworth-Mayers
almost 10 years ago
71
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Resource summary
THE CPU (and it's limiting factors)
Carries out the fetch execute cycle
Uses electrical systems to direct the system to process instructions
Standard process which describes the steps needed for processing
Contains the arithmetic logic unit.
Carries out arithmetic problems
THE CACHE
Fast memory which is located near the CPU
It has electrical connections so the CPU can access frequently accessed data
When the CPU requests and instruction, the remaining instructions are stored in the cache
Has access times similar to CPU
Faster than Main Memory (RAM)
By checking the cache first, it reduces amount of time it takes to access data.
THE CLOCK CHIP
Number of cycles the fetch execute cycle goes through per second is determined by this/
Vibrates at a constant speed, measured in Hz
The CPU synchronizes all tasks to it.
CPU with a 3mhz clock speed would cycle round three million times per second.
Main memory cannot work at the same speed as the CPU, causing delays on locating and transmitting data
BUS SPEED
Speed in which data and control signals can travel around the system
Data and control signals move around the system on buses.
Buses are circuits that connects parts of the motherboard together.
Carries out all of the computer processing.
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