A serial communications pathway built into Apple Macintosh and Apple IIGS computers. Typically a flexible cord, it enables low-speed input devices, such as a keyboard or mouse, to communicate with the computer. The bus functions like a simple local area network that can connect up to 16 devices, such as light pens, trackballs, and graphics tablets, to the computer. Although there are only two external ports, more than two devices can be linked in a series called a daisy chain. Acronym: ADB. See also bus, daisy chain2, device driver, input/output port, serial communication.
Ponekad se javlja u obliku skraćenice ADB, a definiše standard za vezu za priključak tastature, miša, kugle i drugih ulaznih uređaja za računare Epl Mekintoš.