Computer interface, alarm:
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Photocopy (photocopy)
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Computer keyboard
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Room noise, Hard disk, read, write
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Bios, Sound signal of a bios computer
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Typewriter, Office work, environmental sounds
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Alarm, Computer interface
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Input error sound, Pressing a keypad
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Office work, general noise
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Manual copy machine
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Signals, Computer interface
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Old computer keyboard
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Franking machine
★★★★★