Computer mouse movement:
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Laser printer
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Turn on, turn off the old monitor
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Bios, Sound signal of a bios computer
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Computer simulated laser
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Computer interface, alarm
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Interference, signal, Modem connection
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Hard disk, write, room noise, read
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Computer mouse movement
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Computer keyboard
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Turning on the laptop, fan noise, shutting
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Communication room, computer noise
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Floppy disk reading
★★★★★