When did Memory- and IO Protection Emerge (Esp. in Minis)?
paulkoning at comcast.net
Thu May 5 12:58:00 CDT 2016
> On May 5, 2016, at 1:34 PM, Chuck Guzis <cclist at sydex.com> wrote:
> On 05/04/2016 11:34 PM, William Donzelli wrote:
>> Wasn't minicomputer really a marketing term, anyway? Suits and all?
> Well, it was the sixties, after all. We all forget "midicomputer". :)
> One thing that some may not know about the 1700 is that it had a
> *per-word* protection bit as well as I/O protection on a "per device"
> basis. I don't know of any other computers with that feature.
Burroughs mainframes? While the tag bits aren't quite semantically equivalent to protection, you get some of the same benefits.
More information about the cctech