Opening, closing the laptop cover:
-
Computer interface, signal read information
-
Matrix printer
-
Repeatedly pressing a computer mouse
-
Opening, closing the laptop cover
-
CD / DVD drive, disc read
-
Jet printer
-
Laser printer
-
Read the, Insert the disk into the drive
-
Floppy disk reading
-
Computer simulated laser
-
Computer noise, Communication room
-
Double click computer mouse
★★★★★