Computer keyboard:
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Matrix printer
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Disc read, CD / DVD drive
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Floppy disk reading
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Repeatedly pressing a computer mouse
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Pressing a keypad, input error sound
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Computer mouse movement
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Laser printer
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Turning on the laptop, shutting, fan noise
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Franking machine
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Opening, closing the laptop cover
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Communication room, computer noise
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Sound signal of a bios computer, bios
★★★★★