<a href="http://www.techradar.com/news/software/operating-systems/10-operating-systems-you-ve-never-heard-of-657469">http://www.techradar.com/news/software/operating-systems/10-operating-systems-you-ve-never-heard-of-657469</a><br>
<br>An amusing look at the last 30 years<br>of PCs. One sees the ebb and flow of<br>ideas and features between platforms,<br>but also sees people putting a great deal<br>of effort in to keeping 25+ year old OSes<br>alive. While many old OSes contained <br>
interesting features and ideas, I'd think<br>most of them have been moved to newer<br>platforms by now, and but for various<br>nostalgia trips, it's hard to see why some<br>go to such great lengths to try to keep <br>
them alive. <br><br>e.g., the best thing to come of Minix was<br>probably to teach Linus Torvalds enough<br>about Unix to write Linix. Up to about<br>version 6, Bell Labs used to give Unix <br>source code to university CS departments<br>
for study. It eventually stopped doing <br>that, and things like Minix filled in the<br>gap some. <br><br>But Linux now mounts almost<br>any file system of interest, so why keep<br>things like DOS around? It was last seen<br>
in win98, which, I gather, was mostly an<br>overlay on DOS.<br><br>Otherwise, this is a study in PC history,<br>which anyone old enough to remember<br>some of the chestnuts will connect with.<br><br> -- Bob<br><br>