Old computer keyboard:
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Computer mouse movement
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Closing the laptop cover, Opening
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Jet printer
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Pressing a keypad, input error sound
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Computer simulated laser
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Modem connection, signal, interference
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Opens, closes the CD / DVD tray
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Computer keyboard
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Insert the disk into the drive, read the
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Repeatedly pressing a computer mouse
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Laser printer
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Turn on, turn off the old monitor
★★★★★