3980278
Mind Map by Lukas Gray, updated more than 1 year ago
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Created by Lukas Gray
about 5 years ago
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Description
Revison - The CPU
1 The purpose of the CPU is to Fetch Decode Execute, meaning it collects data,
de-codes it so it understand than executes it onto an output device, for example:
The moniotor
2 Clock Speeds
2.1 Clock speed is measured in Hertz ( Hz )
This is how many cycles the CPu is doing
per second. The higher the clock speed,
the faster the CPU runs
2.2 GigaHertz =
1000000000
cycles
2.3 MegaHertz =
1000000 cycles
2.4 KiloHertz
= 1000
2.5 TerrorHertz =
1000000000000
3 Dual and Quad
processors
3.1 Dual processors means that there's two CPU processors,
meaning that the two 'brains' will work spontaneously ( At the
same time ) Doing twice as much cycles, making the CPu faster
3.2 Quad processors means that
there's 4, meaning it'll be doing 4
times as much cycles
4 Reasons for choosing higher or
lower clock speeds
4.1 Higher
4.1.1 Advantage(s)
4.1.1.1 Faster
performance
4.1.2 Disadvantage(s)
4.1.2.1 Runs hotter
4.1.2.2 Consumes
more
energy
4.2 Lower
4.2.1 Advantages
4.2.1.1 Less costly
4.2.1.2 Consumes less
energy
4.2.1.3 Needs less
power
4.2.2 Disadvantages
4.2.2.1 Slower
performace