Messages in this thread |  | | From | Telford002@aol ... | Date | Tue, 6 Nov 2001 09:21:36 EST | Subject | Re: How can I know the number of current users in the system? |
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In a message dated 11/6/01 8:01:08 AM Eastern Standard Time, nikberry@med.umich.edu writes:
> Basically once Unix went beyond serial terminals connected to dumb serial > ports, we lost the ability to track users.
I would have phrased the comment somewhat different.
Once Unix adopted the process and file I/O abstraction, a system wide user count became meaningless.
Unix should be contrasted with Primos or VMS where the user memory space or program and serial terminal I/O are used in defining the multiuser time-sharing capabilities of the system.
Joachim Martillo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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