Lotus 1-2-3 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. (http://nyweb.com/lotus/123.html). 1-2-3's successor, {Symphony}, had simultaneous update of spreadsheet, graph and {word processor} windows. (1995-11-28)