Windows 1.0/Development Release 2

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File:Win1.0-DR2.png
Development Release #2
Kernel version	1.0
CPU architecture	x86
Edition	-
BIOS date	June 1984

Development Release #2 is an early pre-release build of the Microsoft Windows operating system, compiled sometime in late June 1984. Like the previous build, it was demonstrated on the Tandy 2000 personal computer.

For some reason, the Clipboard application has been removed in this build. It was later re-added in the next build.

Just like the previous build, this build was launched from a file called DEMO.BAT. It also still uses the .MOD extension as the main executable format.

Present files

This build came with the following files:

• BOXES.MOD/BOXES.RES - Boxes application (color demo)
• CALC.MOD/CALC.RES - Calculator application
• COMMAND.COM - Microsoft MS-DOS command interpreter
• CONFIG.BIN - The system configuration file
• CURSOR.MOD - The Cursor Routines file
• DEMO.BAT - A batch file used to launch the Microsoft Windows demonstration
• DISPLAY.MOD - Display driver
• FONT.RES - Font resources
• GDI.MOD - GDI (Graphics Device Interface) system file
• KERNEL.MOD - Microsoft Windows kernel system file
• KEYBOARD.MOD - Keyboard system file
• KEYNAMES.BIN - Input translation table lookup file
• MB.EXE - Module boot
• MOUSE.MOD - Mouse driver
• PUZZLE.MOD/PUZZLE.RES - Puzzle application
• REVERSI.MOD/REVERSI.RES - Reversi application
• SAMPLE.MOD/ SAMPLE.RES - Sample application
• SHELL.MOD/SHELL.RES - "DOS Window" shell application (later became MS-DOS Executive (MSDOS.EXE)
• TIMER.MOD - System timer driver
• WINDOWS.MOD/WINDOWS.RES - Microsoft Windows User component