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Windows 1.03 is a 16-bit graphical operating system developed by Microsoft Corporation and released to the public in August 1986. It runs as a graphical shell on top of an existing MS-DOS installation. Support was officially discontinued on December 31, 2001. Windows 1.03 included additional international enhancements, such as dedicated drivers for European keyboards, and additional screen and printer drivers.
Windows 1.03 offered limited multitasking. Some basic applications included with Windows 1.0 were Calculator, Calendar, Clipboard Viewer, Clock, Notepad, Reversi, Paint, Write, and Cardfile.
|MS-DOS Minimum/Recommended Specifications|
|Minimum Specifications||Recommended Specifications|
|System||For Compaq and IBM Personal Computers.|
|Operating System||MS-DOS 2.0||Operating System||MS-DOS 3.0|
|RAM||192 KB conventional memory||RAM||512 KB conventional memory|
|Graphics||IBM CGA, IBM EGA, Hercules graphics card or compatibles.|
|Storage||Hard disk installation recommended if running MS-DOS 3.0 or higher, or if the user intends to run multiple programs.|
|Floppy Disk Drive||Two double-sided Floppy Disk Drives are required for Installation. Windows 1.0 designed to be installed to a floppy disk.|