7 Mar
2012
7 Mar
'12
8:17 p.m.
[a "calculator"]
* Primarily has input, and is operated through, a keyboard that
has a numeric keypad (0-9), and discrete function keys for
mathematical & programming operations. Lacks an alphanumeric
keyboard.
* The HP 9100A/B and 9810/9820/9821 match most of
these, though
self-modifying code was possible on the 9100's, although rather
tedious to do.
The 9820 had an alpha keyboard, though not a typewriter-layout alpha
keyboard. The keys to the left, which are usually per-addon functions
like trig, can be used to enter alpha text. (Its ability to actually
work with text was pretty minimal as far as I can recall; as far as my
(now ~35 year old) memory goes I used it for little but prettying up
printed output with descriptive text.)
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