Laser printer:
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Computer simulated laser
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Computer mouse movement
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CD / DVD drive, disc read
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Bios, Sound signal of a bios computer
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Double click computer mouse
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Franking machine
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Fan noise, Turning on the computer, shutting
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Signals, Computer interface
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Input error sound, Pressing a keypad
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Jet printer
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Computer keyboard
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Closes the CD / DVD tray, Opens
★★★★★