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by ksec 1012 days ago
Why was memory tagging ignored for most of the personal computing? Any decent reading materials on the history of it?
2 comments
pjmlp 1012 days ago
Most likely the hardware constraints and economics.

Burroughs was one of the first systems with it, the Lisp and Ada Machines, Xerox Workstations, IBM mainframes, ETHZ systems, among others, all of them rather expensive, or niche, when compared with what became regular consumer hardware.

The failure of Intel's APX32 project probably did not help as well.

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_a_a_a_ 1012 days ago
Cost. Not only in extra memory but I rather suspect, in access patterns as well. So cost in speed too.
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