I decided to add-on the 82C51A just to try some Z80 coding. I added it to the solder-less bread board and checked all my connections for proper continuity. All tested well for continuity, so off to coding.
The Fujitsu-original card uses Intel A, which was manufactured around The maximum performance of Intel A may really be bps. There are some compatible chips.
This page was most recently revised date Aug 28 Digital Group was a small company in the mid's which produced their own design of microcomputers based on their own "bus" architecture, and across a number of single 8-bit microprocessors. It was somewhat popular early in microcomputing history, but fell out of favor by the 's as the architecture did not "catch on" for any number of reasons.
A few years ago I downloaded an older version of Kicad. My purpose then, was to have a nice schematic program I used a very old version of OrCad prior to that and since I wire wraped everything, I was not interested in the PCB part. Well, now I want to attempt a board. I have decided to make and addition to my communications card on a CPM machine using an S bus.
But do you really know the differences between the two? Serial communication was used long before computers existed. A predecessor is the telegraph system using Morse Code, one of the first digital modes of communication.
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Logout Register. What is a good kit to learn about retro computing? Fri Apr 14, pm I'm interested in learning how computers work, on a really low level.
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Add the following snippet to your HTML:. Read up about this project on. A-simple-as-possible computer with the CPU.