|You can think of Windows 3.1 as more of a DOS application than a true operating system. Your computer starts DOS, and you type win at the command prompt to start Windows. You can also add win to your autoexec.bat so that DOS starts Windows automatically. But because DOS performs memory and file management, you can't call Windows 3.1 a true operating system.|
Windows 98, however, is (pretty much) a true operating system. Yeah, DOS is still needed to start Win98, but once it's loaded, DOS is swept under the rug and Windows takes complete control of your computer.
Socket 939 | Dual-core Opteron 185 @ 3.2GHz | 4GB | 1.0TB | Win7 x64
GeForce GTX 460 1GB | X-Fi Ti Pro | A8N32-SLI Deluxe | Antec P182