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Computing (Secondary Storage (Optical disks (CDs and DVDs) (Often used to…
Computing
Secondary Storage
Secondary storage is needed to store programs, data and other files that would otherwise be lost when the power is turned off,
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Flash (solid state)
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Can be used as a portable storage device using relatively low-cost flash memory or as high performance, relatively high-cost solid state drive in a computer system.
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Used in a range of portable devises such as cameras, mobile phones and tablet computers.
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RAM and ROM
RAM
Needs power to maintain it, if the power is turned off then RAM loses its contents
A program is loaded from the hard drive (secondary storage) to the RAM so that the CPU can access the program instructions and associated data.
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Required for: operating systems, applications that are loaded and any data currently in use.
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Cores
Dual core,Quad core, Octa core
Since all the cores can fetch-decode and execute instructions at the same time a multi-core processor can handle more instructions simultaneously, for example running multiple programs at the same time.