Linked by Thom Holwerda on Mon 28th Sep 2009 23:15 UTC, submitted by poundsmack
Microsoft It seems like Microsoft Research is really busy these days with research operating systems. We had Singularity, a microkernel operating system written in managed code, and late last week we were acquainted with Barrelfish, a "multikernel" system which treats a multicore system as a network of independent cores, using ideas from distributed systems. Now, we have a third contestant, and it's called Helios.
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RE[2]: State of Singularity
by pablo_marx on Tue 29th Sep 2009 05:04 UTC in reply to "RE: State of Singularity"
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Of course Solaris is a release of System7 Unix, which is a direct descendant of the first port of Unix from PDP-11 assembly to C. And earlier Sun OS versions were BSD based.

System7 unix? Do you mean System V Release 4 (SVR4)? Or UNIX V7?

Microsoft NT is about the most modern OS your going to see that has any widespread success. Every since OS since then has been a commercial failure.

Of course by your UNIX rationale, NT is really a descendent of VMS which dates back to 1975, which was a descendent of RSX-11 dating back to 1972, of course leading back to RT-11 in 1970. I'm sure some DEC aficionado can neatly tie this back to TOPS-10 or DECSYS going back to 1963/1964. Doesn't sound that much more modern than UNIX....

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