Microsoft Windows turned 25 last Saturday. Computer World has a visual guide to its interface from version 1.0 to 7. Pictured above is a screenshot from 2.0, which debuted in the fall of 1987:
New features in Version 2.0 included the ability to overlap application windows and improved memory use. Also new: Dynamic Data Exchange (DDE), which allowed Windows applications to automatically share and update data. For example, DDE allowed information in an Excel spreadsheet to be automatically updated when data in another Excel spreadsheet was changed.
Link via J-Walk Blog | Screenshot: Microsoft