286's were pretty ancient by 89 anyway. The first 486 was released that same year.
286's were pretty ancient by 89 anyway. The first 486 was released that same year.
Like my rock-bottom "Workforce 486" that was $2000 back in 1993 or so: 486 dx2/66, 250MB HDD, 4MB RAM ordered from the back of Computer Shopper.
We used the segment mode for our real time OS in university as it was simpler than virtual addressing and provided granular enough protection faults for what we were doing.
One neat thing we did with it was use separate segments for different video buffers before they were blitted to the VESA frame buffer region. This gave us a 1980's version of video sandboxing along with vsync'ed double buffering and overlapping windows.
It only really worked because the Pentium 3 we were using could memcpy something like ten thousand times faster than a 286 but it was still cool.
It wasn't like today, where if you're going to buy a new computer, you might as well always get the latest and greatest.