4 May
2025
4 May
'25
11:24 a.m.
On 2025-05-04 2:11 a.m., jos via cctalk wrote:
Well for BASIC that is true.
The Fairchild Symbol Computer was test to just how far TTL could go.
I recall that
system had many boards, the whole "CPU" box was external to
the monitor (and in the earliest versions, the power supply was also a
large external box). I can't really fathom creating a BASIC out of raw
TTL, or maybe I'm misunderstanding the approach.
You build a processor with
some TTL, and then implement a BASIC on that
microprocessor.
There is always this intermediate step, no machine executes BASIC
directly in TTL.
Look here for an example of a processor (Datapoint
2200) in TTL :
https://bitsavers.org/pdf/datapoint/2200/jdreesen_shematics/DP2200_mb.pdf
Jos
Micocoded coded machines, could likely be programed to run basic.
Ben.