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ISA standards

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**ISA standards**

What is ISA standards?

ISA (Industry Standard Architecture) refers to a computer bus standard for IBM PC compatible computers. It was introduced in 1981 as part of the IBM PC and was later expanded in the IBM PC/AT. ISA allowed add-on cards (like sound, video, and network cards) to communicate with the motherboard. While largely replaced by newer standards like PCI, ISA's legacy remains important in understanding the evolution of PC hardware.

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