Talk:Extended Industry Standard Architecture

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Although somewhat inferior to the MCA it became much more popular due to the proprietary nature of MCA. But by the time there was a strong market need for a bus of this speed, Peripheral Component Interconnect (PCI) became the market standard and EISA vanished into obscurity.

But V/LB was massively popular for several years before PCI took off. Am I missing something? Crusadeonilliteracy 14:26, 11 Feb 2004 (UTC)

Yeah, the chronology is off. But it was a factor that by the time the market wanted a bus with the speed and capabilities of EISA, other solutions (like VESA and PCI) won instead. Feel free to revise :-) - David Gerard 15:02, Feb 11, 2004 (UTC)

I've done quite a bit of fixing. It's also better organised - summary, technical then its demise. Further thoughts? - David Gerard 11:02, Feb 12, 2004 (UTC)

I remember hearing that ISA didn't actually have a standard name until EISA came along (therefore if EISA was the "extended" version, the original must have been "industry standard architecture".) Anyone know if that is true? -- DrBob 19:24, 30 Mar 2004 (UTC)

That's true. The 8/16 bit bus was commonly known as the "PC/AT bus" at the time, because the IBM PC/AT (the first popular 286) introduced the bus. At the time of the PC/AT, IBM still set the standard -- which is one reason they thought they could get away with such strict controls on MCA. As you said, the "Gang of Nine" needed to express that they were extending something...so the term ISA was adopted (probably in minor use previously, but not very common) as a springboard for the Extended ISA. EJSawyer 22:57, 7 March 2007 (UTC)[reply]

ISA Patents

IIRC, the ISA bus was patented by IBM, but they were under an anti-trust decree which required them to have open access to their hardware interfaces. This decree was lifted shortly before the introduction of MCA. Many PC vendors paid IBM small amounts of royalties throughout the 80s and 90s for ISA and other basic PC technologies. (The usual quoted figure was $5/machine.) 71.134.252.36 (talk) 03:50, 20 August 2008 (UTC)[reply]