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NNTP-Posting-Date: Wed, 11 Dec 2024 08:50:40 +0000
Subject: Re: Remember "Bit-Slice" Chips ?
Newsgroups: comp.os.linux.misc
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From: "186282@ud0s4.net" <186283@ud0s4.net>
Organization: wokiesux
Date: Wed, 11 Dec 2024 03:50:32 -0500
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On 12/11/24 1:05 AM, rbowman wrote:
> On Wed, 11 Dec 2024 00:45:06 -0500, 186282@ud0s4.net wrote:
> 
>> On 12/10/24 3:01 AM, rbowman wrote:
>>> On Tue, 10 Dec 2024 01:54:05 -0500, 186282@ud0s4.net wrote:
>>>
>>>>      Ummmmm ... I just TRIED with the "Bit-Slice" topic.
>>>>      Jumped IMMEDIATELY back to 'non-OS/Computer stuff'
>>>
>>> How about that bubble memory?
>>
>>     Fizzy !!!  :-)
>>
>>     There may be modern updates - not magnetic bubbles but some kinds of
>>     -ons or -ions. Functional equivs,
>>     flash fakes it, but isn't that robust - and the ferroelectrics are
>>     too low density.
> 
> Somehow bit slice abd bubble memories are cataloged side by side in my
> brain.
> 
> https://en.wikipedia.org/wiki/IBM_PALM_processor

   Well, historically parallel ...

   FOR THE TIME both bit-slice and bubble were
   pretty good.

   But what about The Future ?

> There is another golden oldie. The 5120 was a strange beast, selectable
> for either BASIC or APL. It's successor, the System/23, had an 8085 rather
> than IBM's homebrew but had a similar look. Familiarity with the 8085 was
> one of the factors for using the 8088.

   Umm ... 5120 came well after the 8088. Got yer
   numbers right ?

   The 8085 was a pretty fair predecessor for the 8088
   however. Not THAT much diff. However, for the time,
   the Z80 was maybe a tad better.

   Would still like to get my hands on a working S-100
   Z80 system .....


> What i never could figure out is the 5100, 5120, and 5120 were all the
> PALM, whue the System/23 went to 53xx. Then they went back to 5150 for the
> PC that had absolutely nothing in common with the 5120.

   Did some work with PALMs - not the worst platform
   for the time. Some 3rd-party stuff made 'em very
   versatile.

   The idea of CPUs with some higher-level lang in ROM
   is kinda interesting - and even in The Future.

   Wouldn't pick BASIC or APL these days however, probably
   Python. Integrate the interpreter well enough and they
   could be very fast and useful. I can see lots of
   'industrial'/control apps. The current Py3 is good
   enough for 20+ years fer sure.