STD Bus
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The STD Bus is a computer bus that was used primarily for industrial control systems, but has also found applications in computing. The STD Bus has also been designated as STD-80, referring to its rel
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Expansion card
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In computing, an expansion card, also known as an expansion board, adapter card, peripheral card or accessory card, is a printed circuit board that can be inserted into an electrical connector, or exp
Example of a PCI digital I/O expansion card using a large square chip from PLX Technology to handle the PCI bus interface
Altair 8800b from March 1976 with an 18-slot S-100 backplane which housed both the Intel 8080 mainboard and many expansion boards
Rack of IBM Standard Modular System expansion cards in an IBM 1401 computer using a 16-pin gold plated edge connector first introduced in 1959
Configuration DIP switches in a 16-pin through-hole package as often found in ISA expansion cards from the 1980s