IEEE-488 (HP-IB, GPIB) bus pinout The Hewlett-Packard Instrument Bus (HP-IB), implemented with name GPIB - General Purpose Instrumentation Bus by othe manufacturers, is a short-range digital communications standard developed by Hewlett-Packard (HP) for connecting electronic test and measurement devices (e.g. digital multimeters and logic analyzers) to controllers such as computers. The bus is still in use for this purpose.
The Hewlett-Packard Company (commonly referred to as HP) or shortened to Hewlett-Packard was an American multinational information technology company. It developed and provided a wide variety of hardware components as well as software and related services to consumers, small- and medium-sized businesses (SMBs) and large enterprises, including customers in the government, health and education sectors.