Microsoft Cairo PDC 1993 build
| Build of Microsoft Cairo | |
 | |
| OS family | Windows NT |
|---|---|
| Version number | 3.x |
| Architecture | x86 |
The unidentified PDC 1993 build of Microsoft Cairo is a build that was shown at the 1993 Professional Developers Conference in December 1993.[1]
Much of the build's user interface largely resembles one of Chicago builds in the milestones 4 and 5 development phases, with only one button at the left end of the taskbar instead of three, meaning that the menus have already been unified to a single menu. This can be seen as a stopgap, as the "Start" text on the button has not been implemented yet. Likewise, a clock has now been implemented at the other end and the taskbar itself now acts as a program overview rather than as a folder. It also has an interesting mix of the window controls from Chicago builds of the same era. The Minimize and Maximize buttons have the same appearance as in those builds (there is no Close button implemented yet), but the window menu button has already been replaced by the application's icon.