On 19/10/2011 10:49, slippyr4 wrote: > Rubbish. There were quite a lot of differences between windows 3.11 and > windows 95. The most obvious and important one was that Windows 95 had > preemptive multitasking, 3.11 did not. Plug and play was new to 95. Win 95a multitasking was no difference. Only NT had true pre-emptive=20 multitasking. Win95 (all three main versions) ran on DOS and ran DOS and=20 16 bit applications natively. It was technically impossible for Win95 or=20 win98 to do true pre-emptive multitasking. Plug and play was largely marketing till a decent amount of stuff was on=20 USB on Win98. Win95 originally didn't have USB. Even today "Plug and=20 play" is an aspiration and not entirely real. Any device that exists=20 AFTER the OS is released needs installed essentially the same way as in=20 1991. PCMCIA subsystem for win3.x and WFWG 3.11 was "plug and play" if=20 the PCMCIA device was in the database. This was no different to Win95a.=20 Or indeed to USB today. You are confusing the differences of Win 3.1 and Win2000 rather than=20 final version of WFWG3.11 and first version of Win95. The Explorer shell=20 and Direct X (to allow easy ports of DOS games, back then "real" windows=20 graphics used GDI, VFW or OpenGL) where in reality the only major=20 differences. NT4.0 had OpenGL and Win95 didn't have openGL. In 1995=20 only ported DOS games and some MS demos used Direct X. "Real" windows=20 graphics programming then didn't use it. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .