
These were basically the first word processors released around 1973. While I don't have the Mag Card reader/writer cabinet. I do have some of the the mag cards, I'll try to take some pics later. Each mag card held up to 8000 characters, or about 2.5 pages of words.
It's a Selectric with data out! So technically I can convert it to USB

The only reason I haven't done it yet is due to the sheer number of wires (and finding a mating connector so I don't have to destroy the massive cable...).
Inside, the wires control inputs, such as solenoids and electromagnets. The outputs are magnetic reed switches and a few optical sensors to detect rotation. There are some lock and pushbutton switches on the sides to control the Mag Card unit directly as well.











