3 karma · joined December 21, 2020
I'm not sure it is. It's a completely novel state of affairs that companies expect to have perpetual ownership and absolute control/monopoly over what they've created. It's completely unjustified outside of "well, we have the money to make it so" and the public domain is dead solely because of efforts of companies like Disney.
http://www.chrisfenton.com/cray-1-digital-archeology/
http://www.chrisfenton.com/cos-recovery/
I just wish he'd made higher resolution pictures.
He's also seriously hardcore (or maybe I feel out of depth because I'm a software guy):
> I built a robot that would manually move the head forward 1/5200th of an inch at a time (there are 400 data tracks per inch, so this gives me a whopping 13 steps per data track!), while a high-speed analog-to-digital converter would take the analog signal straight from the drive’s read amplifier and buffer it into an FPGA at a blistering 80 million samples-per-second (like I said earlier, the theme here was overkill…the data was only changing at ~10 MHz or so)
Related: http://www.modularcircuits.com/blog/articles/the-cray-files/