Windows 95
PRODUCT · 2 article mentions

Windows 95 is a consumer-oriented operating system developed by Microsoft, released to manufacturing on July 14, 1995, and to retail on August 24, 1995. The first of the Windows 9x line of operating systems, Windows 95, which replaced Windows 3.1, merged Microsoft's MS-DOS operating system and Microsoft Windows graphical user shell into a single product, removing the requirement to install Windows on top of a separate copy of MS-DOS, and featured major changes to the core components of the operating system, such as moving from the mainly cooperatively multitasked 16-bit architecture of its predecessor to a 32-bit preemptive multitasking architecture.
Wikipedia: https://en.wikipedia.org/wiki/Windows_95
Wikidata: Q83370