Windows 1.0

The very first version of Windows, Microsoft's graphical environment for MS-DOS. It is often overlooked due to support for the platform being extremely miniscule at this stage, but you might be stunned by some of its capabilities that could've reached general availability, including a high color multimedia encyclopedia program.

DR5
The earliest leaked build of Windows 1.0
Alpha
Alpha release of Windows 1.0, includes programs specifically for rendering shapes
Beta
Beta release of Windows 1.0, introduces a splash screen and color support
PE
Windows 1.0 Premiere Edition, possibly used for promoting Windows before release
RTM
All the versions of Windows 1.0 made available to end users through retail packages or OEM bundles

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