Opens, closes the CD / DVD tray:
-
Opens, disc read, closes the CD / DVD tray
-
CD / DVD drive, disc read
-
Computer noise, Communication room
-
Opening, closing the laptop cover
-
Hard disk, room noise, write, read
-
Computer simulated laser
-
Bios, Sound signal of a bios computer
-
Manual copy machine
-
Turn on, turn off the old monitor
-
Photocopy (photocopy)
-
Interference, signal, Modem connection
-
Computer mouse movement
★★★★★