Lotus 1-2-3
<tool, product> A
spreadsheet for
MS-DOS from
Lotus Development Corporation.
It can be programmed using "
macros" and comes with a separate program to produce graphs and charts but this cannot be run at the same time as the spreadsheet.
It has keyboard-driven pop-up menus as well as one-key commands, making it fast to operate.
Lotus 1-2-3 supported
EGA and later
VGA graphics.
Early versions used the
filename extension "WK1".
Version: 4.
Lotus 1-2-3 has been the subject of several
user interface copyright court cases in the US.
Home (http://www.nyweb.com/lotus/123.html).
1-2-3's successor,
Symphony, had simultaneous update of spreadsheet, graph and
word processor windows.