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20632179
Computer components
Descrição
A short mind map to describe the components of a computer and what they are used for
Sem etiquetas
parts of computer
why are they used
how they help it function
key stage 3
Mapa Mental por
Mishka Kalra
, atualizado more than 1 year ago
Mais
Menos
Criado por
Mishka Kalra
mais de 4 anos atrás
26
0
0
Resumo de Recurso
Computer components
Definitions
CPU
Stands for Central Processing Unit
Processes information
Motherboard
This connects all the components.
Hardrive
Reads and writes data onto mental platters
Fan
This is used to cool components that are overheated
RAM
Stores data while powered
Power supply
Supplies power to the components to enable them to work efficiently.
Fetch, decode, execute cycle
Fetch- Instructions transferred from the RAM to the CPU.
First step
Decode- The instruction is then understood or decoded by the CPU.
Second step
Execute- The decoded information is carried out or executed.
Third step
This cycle is performed continuously from the moment you turn on your computer to the time you turn it off.
Definitions
Hard drive
Reads and writes data onto metal platters
Floppy drive
Reads and writes information from floppy disks
Also known as FFD.
Optical drive
Reads and writes data stored on compact disks.
Processing speed
1 Hertz
One cycle per second
Hz
1 Kilohertz
one thousand cycles per second
KHz
1 Megahertz
one million cycles per second
MGz
1 Gigahertz
One billion cycles per second
GHz
This is the measure of how many cycles the computer does per second
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