Oric And ATMOS projects
These are some projects and related files for the Oric and ATMOS computers.
Cumana Disk Interface
An annotated version of the Cumana Disk Interface schematic.
Oric/Atmos Repair Guide Hints
This document contains some hints to getting a broken Oric/ATMOS up and working.
Diagnostics ROM
For use with the above repair guide, this diagnostic ROM and simple hardware can be used to fault find and verify an Oric/ATMOS that is faulty.
Twin ROMS modification
This project details a way to fit a second 27128 EPROM/ROM into an Oric or ATMOS, allowing manual selection between V1.0 and V1.1 ROMS, or between any two compatible ROMS.
Oric ULA deconstructed V1
This project is a black-box deconstruction from the observed behaviour of the Oric ULA HCS10017
Oric ULA decapped!
Images of the Oric HCS10017 ULA
Source, documentation and pictures © 2009-2018 Mike Brown. Visit the website at http://oric.signal11.org.uk for the latest version and contact details.