jerryc41 wrote:
When you hit a key on a typewriter, a metal arm swings up and hits the platen. If the keyboard wasn't arranged with offset letters, every one of those metal arms would have to have a specific bend to avoid hitting the others. Shifting the keys to one side lets the typewriter use the same shape for each arm - much simpler for the manufacturer. With the move to computers, the manufacturers weren't about to make typists relearn typing.
Funny thing. Right after I read this, I started watching some youtube video, and one of my favorite channels just posted a video which deal with just that question. (Well, that question and a few other -- it's answered about 8 minutes in)