Codex Gamicus
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Windows 1.0
Front-Cover-Microsoft-Windows-10-NA-PC.jpg
Basic Information
Microsoft Corporation
Microsoft Corporation
Type(s)
Operating System
Architecture(s)
IA-16
Status(es)
Unsupported
Microsoft Windows
Successor
Windows 1.01
Platform(s)
MS-DOS
CanadaUnited StatesMexico North American Release Date(s)
MS-DOS
July 301985
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Windows 1.0 (briefly codenamed Interface Manager) is a 16-bit graphical operating system developed by Microsoft Corporation and released to testers in July, 1985 as Windows 1.0 Premiere Edition. It runs as a graphical shell on top of an existing MS-DOS installation. Support was officially discontinued on December 31, 2001. Windows 1.0's first public release was Windows 1.01, while Windows 1.02 was the first international release.

Windows 1.0 offered limited multitasking. Some basic applications included with Windows 1.0 were Calculator, Calendar, Clipboard Viewer, Clock, Notepad, Reversi, Paint, Write, and Cardfile.

Minimum Specifications[]

MS-DOSMS-DOS Minimum/Recommended Specifications
Minimum Specifications Recommended Specifications
System For Compaq and IBM Personal Computers. IBM PS/2 support added in Windows 1.04, but only IBM Windows 1.04 supports PS/2 mice.
Operating System MS-DOS 2.0 Operating System MS-DOS 3.0
CPU Intel-logo.svg 8088 CPU Intel-logo.svg 80286
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.