Re: Remember "Bit-Slice" Chips ?

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

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.

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.