Computer bus is a subsystem that transfers data between components inside a computer or between computers.
Modern computer buses can use parallel and bit-serial connections, and can be wired in either a multidrop (electrical parallel) or daisy chain topology, or connected by switched hubs, as in the case of USB.
- ADB Apple Desktop Bus ADB is a low-speed serial bus used on Apple Macintosh computers manufactured in 1986-1999. It's used to connect input devices (such as the mouse or keyboard) to the CPU
- Apple Communication Slot Available on Apple Macintosh 575, 630, 5200 5300 and Apple Performa 6200CD, 6300 series
- Apple Duo Dock Available on Apple Duo Dock & Duo Dock II dockingstations. For use with Apple PowerBook Duo computers.
- Apple II slot Expansion Slot Connector for the Apple II Series Interface/Add On Cards
- Apple IIe I/O slot
- Apple Macintosh portable Processor-Direct Slot (PPDS)
- Apple Macintosh Processor-Direct Slot (PDS) Available on Apple Macintosh SE/30 & IIfx
- NuBus NuBus is a 32-bit parallel computer bus, originally developed at MIT as a part of the NuMachine workstation project, and eventually used by Apple Computer and NeXT Computer.
- NuBus 90 Available on old Apple Macintosh computers. NuBus with clock rate 20 MHz.
