In 2018 Bram Prosman started with his Junior Computer Revival.
His story and the source of documents and image on his website, check there for updated files
I copied over here his 2.0, 2.1 and 2.2 designs of the basic Junior.
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Memory map Junior Computer |
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1980 04 72 Junior Monitor |
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Junior Computer Monitor Listing |
Junior Computer Monitor Original TASM source
TASM_32 for Windows 10, 64 bit
Version 2.0
Built and tested. Note the design flaws in Version 2.0, read this first!
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Junior Computer Schematics V2.00 |
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Junior Computer PCB BOTTOM V2.00 |
| Junior Computer PCB BOTTOM V2.00 Gerbers |
DISCLAIMER – Please note Bram has not tested yet the V2_1 and V2_2 PCB’s!
Version 2.1 and 2.2
Built and tested. Note the design flaws in Version 2.0, read this first!
Version 2.x added support for smaller push buttons instead of the rare and expensive original used Digitasten.
See also:
Load papertape format
The KIM-1 has two methods of loading programs: - from audio files on the audio interface - from papertape from a paper...
The KIM-1 has two methods of loading programs: - from audio files on the audio interface - from papertape from a paper...
Kowalski assembler simulator
Michael Kowalski created the 6502 Simulator many years ago. It simulated the MOS 6502, CMOS 65C02, and the 6501. Daryl R...
Michael Kowalski created the 6502 Simulator many years ago. It simulated the MOS 6502, CMOS 65C02, and the 6501. Daryl R...
Home-Brew Cassette Interface for Micro-KIM
Design by Timothy Alicie Demonstrates his design for a cassette interface for the Micro-KIM single board computer fro...
Design by Timothy Alicie Demonstrates his design for a cassette interface for the Micro-KIM single board computer fro...
CPU NOP testers
While building the Retro Chip Tester, designed by Stephan Slabihoud, and documented on his 8bit-museum website, I no...
While building the Retro Chip Tester, designed by Stephan Slabihoud, and documented on his 8bit-museum website, I no...