In computer world, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. Serial communication is used for all long-haul communication and most computer networks, where the cost of cable and synchronization difficulties make parallel communication impractical.

Serial computer buses are becoming more common even at shorter distances, as improved signal integrity and transmission speeds in newer serial technologies have begun to outweight the parallel buses advantages. The migration from PCI to PCI Express is an example.

Show device-specific * / Apple / DEC / IBM / obsolete computers / SGI / Sun pinouts only (please note that filtering may not be accurate) or follow to 25 MODERN hardware pinouts.

Apple Pinouts

DEC Pinouts

  • 10 pin IDC male connector drawing
    DEC DLV11-J Serial Available on the DEC DLV11-J Serial card
  • 25 pin D-SUB male connector drawing
    DEC Dual RS-232 Found on the DEC Multia and DEC UDB (Universal Desktop Box). It contains two Serial ports on one connector. The 1st port is located on the normal pins, and the 2nd port is located on some "spare" pins.
  • 6 pin MMJ female connector drawing6 pin MMJ male connector drawing
    DEC MMJ MMJ=Modified Modular Jack. Invented by Digital Equipment Corporation (DEC) (now: Compaq)

IBM Pinouts

obsolete computers Pinouts

SGI Pinouts

  • 8 pin mini-DIN female connector drawing
    Serial (SGI MiniDIN) Mini-DIN-8 serial port connectors are found on the Personal IRIS 4D/30, 4D/35, Indigo, Indy, and Indigo2. Most of other SGI workstation uses standard PC serial pinout.
  • 9 pin D-SUB female connector drawing
    SGI serial port This connector can be found on Challenge, Onyx, Personal IRIS, and Power Series systems

Sun Pinouts

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