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RAM - Random Access Memory
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HHD - Hard Disk Drive
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Smaller amount (typically 512 MB - 4 GB)
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Larger amount (100GB to 500 GB or more)
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Temporary storage of files and programs.
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Permanent storage of files and programs.
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A little like your real desktop - has only your current work on it.
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Like a file cabinet - has long-term storage of work.
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Contents disappear when you turn off power to the computer.
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Contents remain when you power off the computer (they don't disappear unless you purposely delete them.)
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Contents disappear when the computer crashes.
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Contents remain when the computer crashes.
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Consists of chips (microprocessors.)
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Consists of hard disks (platters.)
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A temporary copy of the opened file and all changes, are kept in RAM until the file is saved.
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Until your changes are saved, the original file remains on the HDD. Once saved the new changes are written to the disk drive.
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