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

From: Philip.Belben_at_powertech.co.uk <(Philip.Belben_at_powertech.co.uk)>
Date: Wed Jul 1 12:41:56 1998

Pete Turnbull wrote:

> 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.

I must admit I'd not met the T-11. I stand corrected.

As for the F-11, hadn't I just agreed with Tony that a chipset like the
F-11 was a microprocessor?

Received on Wed Jul 01 1998 - 12:41:56 BST

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