What ever happened to Tandem and NonStop OS 2087

I'm going to dig out Mueller's book on PC maintenance...

If it were far better, then PCI would never have survived, thrived and then conquered.

Are you going to tell me that ISA-8 and the PC-XT bus are not one in the same? And that ISA-16 and the AT bus, likewise, are not one in the same?

IBM had lost their own bus to the industry and in an attempt to salvage something from the clone market, came up with MCA and the license, etc. It didn't work as the clone market continued with ISA by making the VLB. Later came PCI and IBM is out of the PC business. Are you just hard-headed or what? Have you ever worked on a PC, XT, AT and the clones? I have and have had no problem interchanging ISA cards with IBM cards, except the ISA cards tended to be cheaper and had more capabilities.

Further, this is what wiki says about MCA:

********************************************************************** Why MCA failed

Although MCA was a huge improvement over ISA, it was limited only to IBM hardware. It was not compatible with either EISA or XT bus architecture so older cards cannot be used with it.

This means that if it became a PC standard, the millons of old ISA cards would stop working. This small market made for very high prices, and IBM didn't help matters by charging high licensing fees.

MCA was largely ignored, and with the introduction of PCI, MCA swiftly disappeared.

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Go ahead and correct them, I dare you!

Eric