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From: ka@hou3c.UUCP (Kenneth Almquist)
Newsgroups: net.arch
Subject: Re: OS info request
Message-ID: <983@hou3c.UUCP>
Date: Mon, 14-Jan-85 16:06:51 EST
Article-I.D.: hou3c.983
Posted: Mon Jan 14 16:06:51 1985
Date-Received: Tue, 15-Jan-85 02:01:17 EST
References: <105@endot.UUCP> <1399@uscvax.UUCP>
Organization: Bell Labs, Holmdel, NJ
Lines: 8

To correct a few figures posted to the net:  System V has about
60 system calls, 9 of which are optional IPC calls.  VMS has about
84 system services, which does not include services provided by
things like the record management system.  I don't  have a count of
system calls for TOPS-20, but I'm sure that it is more than 100.
The number of system calls is not the entire story; TOPS-20 provides
an overwhelming number of options on some of its system calls.
				Kenneth Almquist