Floppy disk reading:
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Computer noise, Communication room
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Removed, The USB flash drive is inserted
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Repeatedly pressing a computer mouse
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Matrix printer
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Turn on, turn off the old computer
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Closes the CD / DVD tray, Opens
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Computer simulated laser
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Pressing a keypad, input error sound
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Computer mouse movement
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Modem connection, signal, interference
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Manual copy machine
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Office work, environmental sounds, typewriter
★★★★★