GPIB interface

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GPIB connector on back of a Tektronix TDS210 scope

The GPIB interface, also known by IEEE standard number IEEE-488 and IEC standard IEC-625, is a short-range, 8-bit parallel digital communications bus created as HP-IB (Hewlett-Packard Interface Bus) in the late 1960s for use with automated test equipment.

The original specification allows for speeds up to 1 MByte/s but this was rarely achieved.