All of that hardware was put inside a QWERTY keyboard case. Finally, the TRS-80 used its own TRSDOS operating system. When the RTS-80 went on sale, Radio Shack offered the PC by itself for $399.

For those of us who remember Radio Shack as more than just an overpriced ... to nerd-snipe his collaborator [Jason] into coding up an 80-nibble Tower of Hanoi solver. It’s a little awkward ...