Office work, typewriter, environmental sounds:
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Computer interface, signals
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Pressing a keypad, input error sound
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Computer interface, signal read information
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Double click computer mouse
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Matrix printer
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Disc read, CD / DVD drive
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Turning on the laptop, fan noise, shutting
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Computer mouse click
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Turn on, turn off the old monitor
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Manual copy machine
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Read the, Insert the disk into the drive
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Bios, Sound signal of a bios computer
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