Microsoft Windows

Windows logo 1985
Microsoft Windows logo 1985
Project name: "Interface Manager"

Name: "Microsoft Windows"

Categories: Electronics, Home - Office - School

Subcategory: Operating Systems

Developer: Microsoft (founded on April 4, 1975, by Bill Gates and Paul Allen)

First version: 1.01

Released: November 20, 1985 - Bellevue, Washington, USA

Platforms: x86

Programming language: C, C++, Assembly

Default user interface: Windows shell

First price: 99 USD

Features: Windows 1.0 is an MS-DOS program. It requires MS-DOS version 2.0, two double-sided disk drives or a hard disk, 256K of memory or greater and a graphics-adapter card. Windows 1.0 does not allow overlapping windows. Instead all windows are tiled. Only modal dialog boxes may appear over other windows. Windows 1.0 runs a shell program known as the MS-DOS Executive, which is little more than a mouse-able output of the DIR command that does not support icons. Components included Calculator, Calendar, Cardfile, Clipboard viewer, Clock, Control Panel, Notepad, Paint, Reversi, Terminal and Write. Package contained some manuals and five 5.25" floppy disks: Setup Disk, Build Disk, Utilities Disk, Desktop Applications Disk, and Program Disk (Microsoft Windows Write). Windows 1.0 was officially declared obsolete and unsupported by Microsoft on December 31, 2001.

Interesting facts: The history of Windows dates back to September 1981, when Chase Bishop, a computer scientist, designed the first model of an electronic device and project "Interface Manager" was started. It was presented to the public under the name "Windows" on November 10, 1983 and released two years later.

Slogan (1986): «Microsoft Introduces Power Windows. It's going to open your eyes».

Property: Microsoft Corporation

Product website:

Windows 1.0 press release of the launch
Windows 1.0, press release of the launch (Microsoft, November 20, 1985)

Windows 1.0 boot screen
Windows 1.0 welcome splash

Windows 1.0 desktop
Windows 1.0 desktop

A slideshow introducing Windows 1.0 (released in late 1985 on a 360 KB preview disk)

Windows 1.0 box
Windows 1.0 box - back
Windows 1.0 box. It contained five 5.25" floppy disks and some manuals.

Windows 1.0 disks
Windows 1.0 floppy disks suite: Setup Disk, Build Disk, Utilities Disk, Desktop Applications Disk, Program Disk (Microsoft Windows Write).

Windows 1.0 brochure - 1
Windows 1.0 brochure - 2
Windows 1.0 brochure - 3
Windows 1.0 brochure - 4
Windows 1.0 brochure pages (January 1986)

Bill Gates
Bill Gates in 1985
Bill Gates, CEO of Microsoft, in his office soon after the release of Windows 1.0 (1985)

Windows 11
Windows in its advanced version (Windows 11, 2021)

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