ARM, originally "Acorn RISC Machine" but since the demise of Acorn "Advanced RISC Machine", is the best selling processor in the world - it powers your smartphone, your set top box, your router, your Raspberry Pi, maybe even your microwave.
RISC of course stands for "Reduced Instruction Set Computing". Basically it allows CPUs to be less complex and use less power than CISC processors like the x86 one in your home computer.
But why am I telling you this? Because here we have something really special. This is the Acorn Archimedes A305, the computer that started the ARM revolution! Released in 1987 for the somewhat pricey sum of £800, this thing was arguably the first 32 bit home computer, and featured the ARMv2 CPU (the ARMv1 was only available as a dev kit that connected to the BBC Micro). Mine came in the original box with the manuals and accessories. Unfortunately I don't have the monitor, but it seems to play just fine with my Atari SC1425. Just as well really, as the RISCOS port of Cannon Fodder blows the Atari ST version out of the water!
It seems the owner of this machine spent a fair bit of money on it over the years, with a 420MB hard disk upgrade, 4MB RAM and a rare ARMv3 CPU board, as well as an upgrade from the original Arthur OS to the much more useable RISCOS 3. It also has a video digitiser card(!?) More on this machine soon!
Before:after. Looking much better! Sadly I’m still getting the dreaded “Simasimac”. I get a dead chime on boot and horizontal lines. There are quite a few possible fixes to this but it’s getting close to being beyond my skills 😢
This is the logic board from the SE/30 I’ve owned since I was a teenager. It’s also the first thing I replaced the capacitors in and you can tell... today it was showing issues and wouldn’t boot, so time to do a better job! 💪🏻👷🏻♂️⚒
Why not Test drive a Macintosh?
Rather enjoying my merchandise from this ill-fated attempt by Apple to get people buying Macintoshes. At the time (late 1984-early 1985) sales were very low and it wasn’t looking good for the Macintosh at all! Apparently most people returned their Macs after the trial period and then dealers had an even harder time selling them as they were already used 🤦🏻♂️
😩 When things are a bit stressful then some reorganising of your space can really help 🧘🏻♂️ I’m passing a bunch of stuff on to other collectors and that will be a relief too 🙏🏻 Haven’t been able to move around much in here the past couple of months!