Hardware

psahil140
Mind Map by psahil140, updated more than 1 year ago
psahil140
Created by psahil140 about 4 years ago
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Description

Mind Map on Hardware, created by psahil140 on 01/12/2016.

Resource summary

Hardware
1 CPU
1.1 ALU(arithmetic logic unit)
1.1.1 does all the maths
1.2 Immediate access store
1.2.1 Register
1.3 Control Unit
1.3.1 Receives instruction from RAM and directs
1.4 Clock speed
1.4.1 measures in GHz
1.4.1.1 1000 million per second
1.5 Cache
1.5.1 High speed memory
1.5.1.1 More memory the faster it will be
1.6 Number of cores
1.6.1 Not twice as fast
1.6.2 Does improves the speed
1.7 Fetch, Decode, execute cycle
1.7.1 Fetch instructions/data from RAM
1.7.2 Work out what to do
1.7.3 Process it
2 Secondary storage
2.1 Magnetic
2.2 Optical
2.3 Solid state
3 Memory
3.1 cashe
3.2 Virtual
3.3 Ram - volitile
3.4 ROM - boot sequence
3.5 Flash - USB
4 Binary Logic
4.1 Allow use of logic gates
4.1.1 AND
4.1.2 OR
4.1.3 NOT
4.2 High tolerance
4.2.1 Stop mistakes
4.3 Computer components use 0 and 1(on and off)
5 User with special needs
5.1 Braille keyboard
5.2 Eye typer
5.3 Speech recognitation
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