[Fedora]

Thinking about it, she's been using a glorified typewriter for years.

Speaking of which, did you ever notice that Heinlein invented a version of a CAD drawing program based on a typewriter in one of his early stories? I think it was the inventor character in Door Into Summer.

[Professional Engineer]

Drafting Dan

[JenB]

Yes, he did, and that's the novel! He also invented the waterbed. And other things, I believe.

However, his characters use sliderules to calculate their trips between the Moon and Mars... there's a brilliantly funny scene in "The Rolling Stones" where the father, Grandma Hazel, the twins - Castor and Pollux- and the sister all calculate their course, and the sister's is off by orders of magnitude... she has them heading for Proxima Centauri, I believe. Sigh... I love that book. Just one great scene after another.

Oh, and he invented Tribbles, too - the guy who wrote that Star Trek episode admits he stole tribbles from the flat cats in "Rolling Stones".