I don't know why this just popped into my head, but now I'm itching to remember the name of the show. It was in the mid to late 90s and involved mechs of some sort. It was not Battletech, Robotech or ...

Here's my detailed Pixelmator drawing of it: It took cartridges, and the computer read to me/asked me questions about spelling, I think. It had 7 or 8 red LED letters and a membrane keyboard. It was ...