My four-yorkshireprogrammers contribution

Albert van der Horst albert at spenarnc.xs4all.nl
Fri Mar 12 02:33:12 CET 2010


In article <7vdo8sFrelU1 at mid.individual.net>,
Gregory Ewing  <greg.ewing at canterbury.ac.nz> wrote:
>MRAB wrote:
>
>> By the standards of just a few years later, that's not so much a
>> microcomputer as a nanocomputer!
>
>Although not quite as nano as another design published
>in EA a couple of years earlier, the EDUC-8:
>
>   http://www.sworld.com.au/steven/educ-8/
>
>It had a *maximum* of 256 bytes -- due to the architecture,
>there was no way of addressing any more. Also it was
>divided into 16-byte pages, with indirect addressing
>required to access anything in a different page from
>the instruction. Programming for it must have been
>rather challenging.
>
>As far as I know, the EDUC-8 is unique in being the
>only computer design ever published in a hobby magazine
>that *wasn't* based on a microprocessor -- it was all
>built out of 9000 and 7400 series TTL logic chips!

There was the 74 computer in Elektuur (now Elektor).
That was a quite respectable computer, built (you guessed)
from 74-series chips. How many were built, I don't know.

>
>--
>Greg

Groetjes Albert

--
-- 
Albert van der Horst, UTRECHT,THE NETHERLANDS
Economic growth -- being exponential -- ultimately falters.
albert at spe&ar&c.xs4all.nl &=n http://home.hccnet.nl/a.w.m.van.der.horst




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