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What do all the computer acronyms mean, for example, what is CPU, USB, SATA, RAID?

Even if you have many years experience in using a computer, it can still be puzzling to know what all the acronyms mean, for example, when someone asks you how many GB your HDD has got? If the last time you checked GB stood for Great Britain then you need to look up some computing acronyms. A good quick-start list can be found here: