Hard disk, read, write, room noise:
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Bios, Sound signal of a bios computer
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Input error sound, Pressing a keypad
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Laser printer
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General noise, Office work
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Matrix printer
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Insert the disk into the drive, read the
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Communication room, computer noise
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Closing the laptop cover, Opening
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Disc read, Opens, closes the CD / DVD tray
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Computer interface, signals
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Repeatedly pressing a computer mouse
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Opens, closes the CD / DVD tray
★★★★★