Digital devices pt 2

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5 Terms

1
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magnetic storage

makes use of a magnetisable coating. Magnetised dots are made on the surface of the material.

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optical storage

makes use of a laser to shine and reflect light to read the data stored eg, CD and DVDs used to store songs and videos

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solid state drives SSD

solid state disks use non volatile flash memory to store information used in higher end computers and laptops

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processors

A processor is made up of one or more central processing units (CPUs), they carry out software instructions . Each CPU is referred to as a core.

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clock speed

describes the time per second the processor can carry out one or more instructions