Opens, closes the CD / DVD tray, disc read:
-
Computer mouse movement
-
Matrix printer
-
Computer interface, alarm
-
Photocopy (photocopy)
-
Office work, general noise
-
Insert the disk into the drive, read the
-
Computer noise, Communication room
-
Turn on, turn off the old computer
-
Closes the CD / DVD tray, Opens
-
Signals, Computer interface
-
Floppy disk reading
-
Modem connection, interference, signal
★★★★★