The first ARM-based computer was the Acorn Archimedes, a mid-80s computer with 512kB of RAM and no hard drive. The Archimedes ran RISC OS, a very nice graphical operating system written explicitly ...

It was a brand-new Acorn Archimedes, probably an A300, and it was the first time I had used an operating system with a desktop GUI. The computer was the first consumer application of the ARM ...