In 1968, three people wrote a book called "How to Build a Digital Computer That Works" to introduce young people to the new science of computers.
With paper clips, cables and lamps, the authors invited to build a small programmable 5-byte 4-bit computer, enough for young minds to understand the basic processes of the new "machines" that are here to stay.
Although I have followed the instructions in the book, I have incorporated some more modern pieces of hardware, such as multipoint switches, diodes, resistors and LEDs.
I have also recycled parts of old computers such as cables, knobs and even screws.
The assembly has been done on small wooden boards, as described in the book, but changing the "look and feel" of the computer.
Today I finished wiring the Control Panel.From the beginning of the project I tried to make it modular since the search for possible errors and maintenance would be much easier.
Making the system modular consumes more time since instead of just "placing" a cable I placed terminals and connectors;debugging or replacing damaged components should be easier this way.
All cables and connectors are either color-coded (I used network cables) or are numbered so they can be easily identified.I also made an Excel with the cable-number-computer word equivalences to print it and stick it on the inside of the back cover and include it in the operations and maintenance manual.
With this modular format I can quickly disconnect all the panels to remove them from the chassis, repair them independently from the rest of the equipment and once tested, reconnect them.