|(tool, product)||Lotus 1-2-3 - 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".|
Lotus 1-2-3 has been the subject of several user interface copyright court cases in the US.
1-2-3's successor, Symphony, had simultaneous update of spreadsheet, graph and word processor windows.