Old computer keyboard:
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Matrix printer
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Disc read, CD / DVD drive
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Turn off the hard drive, Turn on
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Computer mouse click
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Closes the CD / DVD tray, Opens
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Franking machine
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Computer mouse movement
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Turning on the computer, fan noise, shutting
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The USB flash drive is inserted, removed
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Bios, Sound signal of a bios computer
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Read, Hard disk, room noise, write
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Closes the CD / DVD tray, disc read, Opens
★★★★★