Acorn Atom

I have used an Acorn atom as effectively a arduino of its time for controlling devices, stepper motors.

O man, good times. I remember soldering RAM chips "piggyback" style, then upgrading to 64K of RAM, and adding 8 special-purpose ROMs (from utilities to a spreadsheet program). I even installed a color video board— all of this inside the Acorn Atom itself (which was a keyboard-style computer, similar to the C64). The Atom also brought together a community of hardware and software enthusiasts through Atom Computer Clubs. These clubs were doing amazing things, including the development of Z80 co-processors and even running CP/M. While Acorn moved on from the Atom to the BBC Microcomputer, the clubs kept the Atom alive well beyond its prime. It’s fascinating to look back and realize that the same team behind the Atom went on to create the ARM processor, which, interestingly, shares a striking similarity in its instruction set with the 6502.

I bought an Atom second-hand, it was my first 'own' computer. My father first had a TRS-80 model III and then an IBM clone XT. So the Atom was definitely less capable, but it was my own. I read all the accompanying manuals front to back and I read the computer magazines that came with it and this is how I learned English. I was 9 years old at that point. It came with schematics and of course I opened the case. I could not get the thing to load or save data on my dad's tape recorder. And it was only so much fun trying to type in a program from a listing which I could not save, especially taking into account my limited typing skills at the time and the fact that I had to do this while the Atom was attached to the TV in the living room. Still, it was a worth wile and forming experience and surely worth my pocket money. Later on in life, end of 90s, I was re-wiring the building of my students union, with a friend. Many amps main board, 380 volts, 40 circuits or so, kind of big install. We had to create plans and supply them to get approval from the city or the utility company or the architect or such. For this we used the Archimedes of some guy that helped us. At this point the Archimedes definitely was dead as a platform, Windows 98 was just out. But it was still possible to use it to create drawings and schematics and quite capable.