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NC4016 – A Forth chip ahead of its time
As a trainee i had the privilege of working with a Novix NC4000 beta Board – It used a NC4016 Forth CPU that maintained separate code and stack space, making it incredibly fast. Allowing separate busses allowed the…
Read More »Reading Paper Tapes in 2022
I have a couple of old paper tapes – I also have an ASR33 teletype, which is more than capable of reading a tape, but making the ASR33 operate correctly is a labor of love which I will…
Read More »My IMSAI is alive!!
It’s been an epic week. I got my IMSAI S100 system running. I replaced the 120v linear power supply with a couple of modern switchers – now the system is sooo much lighter, and I can plug it…
Read More »An 80188 based SBC
Last night I completed my 80188 based SBC-188 build. It is a ECB board designed by John Coffman in the Retrocomputers forum that provides an Intel 80188 coupled with 1Mb of RAM and 128k of ROM. It also…
Read More »Dracblade – A Propeller based Z80 CP/M board
A couple of years ago, a fellow named Dr. Acula designed a neat little Parallax Propeller based board that implemented a full CP/M system providing a Z80 with dual serial, 512k Ram, VGA, PS/2 Keyboard, and SD storage….
Read More »A Z180 based SBC
I recently decided to finish my Z180 based Single Board computer. It is a board named the “N8” designed in about 2012 as part of the then expanding N8VEM series of projects. It was neat because it promised…
Read More »Using the USB ATTiny 85 boards
I have always loved the Arduino universe. I started originally with Microchip PIC devices, but once I discovered Arduino, my world changed :-). For the last year or so, I have been playing with a tiny board that…
Read More »The world of Raspberry Pi Clusters
(or – how to chuck a heap of computers into a small space… to do SDR functions.) So – One of my fellow Ham operators here in Canberra, Wade (VK1MIC) showed me a photo of his cluster of…
Read More »A Rockwell RSC Forth System
When I was a trainee in the Electronics Lab at the Research School of Physical Sciences at the Australian national university, we used Forth to control systems. Tom Rhymes had designed a locally developed Z80 STD bus board,…
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