> Windows 16 bit did, but it required a MMU anyway, at least since Windows 3
Windows 3.0 supported three modes of operation: real mode (8086 minimum), standard mode (286 minimum), 386 Enhanced mode (386 minimum). Real mode was pretty limited, and a lot of apps could not fit in its rather limited memory, but it was not completely useless. I believe real mode Windows apps could use EMS, although I’m not sure if many actually did
In Windows 3.1, real mode was removed, and only standard and 386 Enhanced were supported. So, 3.1 was the first version to “require an MMU”, if by that you mean a 286 or higher
Windows 3.0 supported three modes of operation: real mode (8086 minimum), standard mode (286 minimum), 386 Enhanced mode (386 minimum). Real mode was pretty limited, and a lot of apps could not fit in its rather limited memory, but it was not completely useless. I believe real mode Windows apps could use EMS, although I’m not sure if many actually did
In Windows 3.1, real mode was removed, and only standard and 386 Enhanced were supported. So, 3.1 was the first version to “require an MMU”, if by that you mean a 286 or higher