Posts about Altair 8800
Thought you'd all be interested in my adventure to build an Altair 8800 up from bare boards. It includes modifying a too-new-for-a-front-panel memory card design, and modifying Altair Basic and CP/M to use a different serial board.
Post 1, Planning and Building https://barberd.medium.com/building-a-new-altair-1975-style-5df2cd266d68
Post 2, Completion and First Boot https://barberd.medium.com/building-a-new-altair-hardware-debugging-bootstrapping-and-success-7585c0acb4e0
Post 3, Modifying CP/M to use a virtual floppy disk over serial https://barberd.medium.com/patching-an-old-os-for-the-new-altair-7121a74b7da8
I thought I'd share a project I just finished up. I modified the Lifeboat Altair 8800 CPM 2.2 BIOS to read and write disk tracks over serial along with an accompanying python script on the PC side of the serial connection. This allows the PC to serve as a virtual floppy drive for the Altair.
Hope it helps someone, find it here: https://github.com/barberd/altair-cpm-serialdisk
