Hard disk, read, write, room noise:
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Manual copy machine
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Read the, Insert the disk into the drive
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Turn on, turn off the hard drive
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Signal read information, Computer interface
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Signals, Computer interface
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Repeatedly pressing a computer mouse
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Sound signal of a bios computer, bios
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Communication room, computer noise
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Turn off the old monitor, Turn on
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Laser printer
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Turning on the computer, fan noise, shutting
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Jet printer
★★★★★