Turning on the computer, fan noise, shutting down:
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Opens, closes the CD / DVD tray
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Turn on, turn off the hard drive
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Matrix printer
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Sound signal of a bios computer, bios
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Laser printer
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Old computer keyboard
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Alarm, Computer interface
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Insert the disk into the drive, read the
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Photocopy (photocopy)
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Pressing a keypad, input error sound
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Computer simulated laser
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Computer mouse movement
★★★★★