RS-422 uses balanced differential signals on a 9-pin D-sub for longer distance serial communication than RS-232, support

VESA Local Bus (VL-Bus) is a 32-bit extension of the ISA bus running at CPU speed (25-40 MHz) for video cards in 486-era

EISA (Extended ISA) extends ISA to 32-bit by adding a second row of contacts in the same slot, backwards compatible with

MCA (Micro Channel Architecture) is IBM proprietary bus for PS/2 computers from 1987, with 32-bit data and address bus,

Zorro II is the Amiga 2000 expansion bus providing a 16-bit data bus at 7.14 MHz based on the 68000 processor bus for me

NuBus is the expansion bus used in Mac II, IIx, IIcx, IIci, Quadra, and some PowerMac models from 1987 to 1995. The 96-p

13W3 is a hybrid D-sub connector with 10 standard signal pins plus 3 coaxial contacts used for RGB video on Sun workstat

ISA 16-bit slot extends the 8-bit ISA with an additional 36-pin connector section for 16-bit data bus and 24-bit address

ISA (Industry Standard Architecture) 8-bit expansion slot used in IBM PC and XT clones from 1981, providing an 8-bit dat

C64 User Port is a 24-pin edge connector providing 8 bits of parallel I/O, RS-232 serial, and timing signals for modems,