Development Release #1 is an early pre-release build of Microsoft Windows 1.0, demonstrated on the Tandy 2000 personal computer. It is the first build from the Developer Release line.
Background
The Tandy 2000 was an Intel 80186-based computer. Since the 80186 processor was not fully compatible with the IBM PC and compatibles, this created compatibility issues dividing it from other machines of the time.
The version of Windows demonstrated here is one that was specifically designed for the Tandy 2000 personal computer, including the Intel 80186 processor and also the high resolution graphics (640x400 screen resolution at 16 colors) used by the machine itself.
Files
This build was launched from a file called DEMO.BAT
and was intended to be run from a single floppy disk. This loaded a copy of Windows with several sample applications which could easily be loaded from there.
This build predates NE and uses the .MOD
extension as the main executable format.
The files here are as follows:
BOXES.MOD
: Boxes sampleBOXES.RES
: Resource file for Boxes sampleCALC.MOD
: Calculator applicationCALC.RES
: Resource file for Calculator applicationCLIP.MOD
: ClipboardCLIP.RES
: Resource file for ClipboardCOMMAND.COM
: Microsoft MS-DOS command interpreterCONFIG.BIN
: System configuration fileCURSOR.MOD
: Mouse cursor fileDEMO.BAT
: Used to launch the Microsoft Windows demonstrationDISPLAY.MOD
: Display driver fileFONT.RES
: Font resourcesGDI.MOD
: GDI (Graphics Device Interface) system fileGDI16.MOD
: GDI (Graphics Device Interface) 16-bit system fileGDI8.MOD
: GDI (Graphics Device Interface) 8-bit system fileKERNEL.MOD
: Microsoft Windows kernel system fileKEYBOARD.MOD
: Keyboard system fileKEYNAMES.BIN
: Extra keyboard system fileMB.EXE
: Mapbase application (MS-DOS)MOUSE.MOD
: Mouse driver filePUZZLE.MOD
: Puzzle sample applicationPUZZLE.RES
: Resource file for Puzzle sample applicationREVERSI.MOD
: Reversi sample applicationREVERSI.RES
: Resource file for Reversi sample applicationSAMPLE.MOD
: Sample ApplicationSAMPLE.RES
: Resource file for Sample ApplicationSHELL.MOD
: "DOS Window" shell applicationSHELL.RES
: Resource file for "DOS Window" shell applicationTEST.MOD
: Test executable fileTIMER.MOD
: System timer driver fileWINDOWS.MOD
: Microsoft Windows executable fileWINDOWS.RES
: Resource file for Microsoft Windows executable file