CD / DVD drive, disc read:
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General noise, Office work
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Matrix printer
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Laser printer
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Pressing a keypad, input error sound
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Disc read, CD / DVD drive
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Read the, Insert the disk into the drive
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Turn off the old computer, Turn on
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Franking machine
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Closes the CD / DVD tray, Opens, disc read
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Bios, Sound signal of a bios computer
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Computer keyboard
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Computer noise, Communication room
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