Turn on, turn off the old monitor:
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Turn on, turn off the hard drive
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Matrix printer
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Opens, disc read, closes the CD / DVD tray
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Computer keyboard
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Franking machine
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Communication room, computer noise
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Insert the disk into the drive, read the
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Pressing a keypad, input error sound
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Modem connection, signal, interference
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Signal read information, Computer interface
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Office work, general noise
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Floppy disk reading
★★★★★