OS's In ROM's (was: Re: Mac Classic prob (was Macin

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Tue Jun 30 17:44:38 1998

On Jun 30, 18:04, Philip.Belben_at_powertech.co.uk wrote:
> > Other people insist a microprocessor is one chip only.
>
> So I notice. But by that definition _none_ of the micro PDPs were true
> microprocessors, or at least none up until the 73. The Micro J-11
> processor in the 73 was implemented as two chips on a large ceramic
> carrier. Was this also the case with later J-11s?

Yes, it is. But if you allow a J-11 as a microprocessor, you must also
allow the F-11 (as in 11/23, 11/24) since it too has the complete CPU on
one (40-pin) carrier. The other devices that make up the chipset are truly
optional. You'd also need to allow the T-11 processor.


-- 
Pete						Peter Turnbull
						Dept. of Computer Science
						University of York
Received on Tue Jun 30 1998 - 17:44:38 BST

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