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.Start .1-2-3' s successor, Symphony, had simultaneous update of spreadsheet, graph and word processor windows.(1995-11-28)