Linked by Anton Klotz on Thu 18th Jan 2007 18:16 UTC
Hardware, Embedded Systems This article tries to explain why workstations are no longer an appropriate tool for the present working environment, what the alternatives are, and what consequences it has for the development of OSes.
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Times change
by smilie on Fri 19th Jan 2007 19:16 UTC
smilie
Member since:
2006-07-19

I would like to point out that operating systems like OS/360, MVS, and VMS/OpenVMS are not "server only" operating systems. They are general purpose operating systems.

The first two are mainframe O/Ss and VMS/OpenVMS ran on workstations, servers, and minicomputers. I don't know if it ran on DEC-10/TOPS-10 so I can't say if it ran on a mainframe.

One important difference between the current PC/Workstation/Server O/Ss and the old mainframe/minicomputer O/Ss is the expected uptime. Some MVS systems have been up for 30+ years with no unscheduled down time. VMS/OpenVMS systems have recorded uptimes on the order of 20 years.

Modern Unix and Windows systems are, at best, 1 to 3 orders of magnitude less reliable that those systems. And you pay for that reliability.

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