[AnAmericanMother]

There isn't an @ key. You have to hit the right alt key, then Q.

And the Z and Y are swapped.

I never used @ because my teacher's portable was WAY before the internet, and actually before computers - at least anything smaller or more complicated than a PDP-8 . . .

[sionnsar]

Must have been the @ character then. The key sequence was not obvious, I probably copied the character from somewhere, thè wáy Î dïd thiß. Swapped letters were less of a problem: I was never a touch-typist, more of an advanced hunt-n-pecker, but moving the keys around did slow me down a lot.