From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!i2pn.org!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!buffer1.nntp.dca1.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Tue, 26 Feb 2019 20:00:13 -0600 From: Dennis Lee Bieber Newsgroups: comp.lang.ada Subject: Re: Why couldn't an operating system be written in ada Date: Tue, 26 Feb 2019 21:00:11 -0500 Organization: IISS Elusive Unicorn Message-ID: References: <4s8rud$9j3@tribune> <792fba1b-7a54-4d00-ae85-e6bd0737f001@googlegroups.com> User-Agent: ForteAgent/8.00.32.1272 X-No-Archive: YES MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-G9w150Ubw7KxJ1H9XQrVUCEQ+S20cOEwzZrUOar4gjXAbvXYjA3LIaK8yHEhA+Vm3SdTDn1EaWcx3kc!MwSAcpF07rpEra0s007NuPf7prPGlAKlsh8Atq8j8UHlaFxyTTXuvnSwzy2d9oROIthl16l/ X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 2166 Xref: reader01.eternal-september.org comp.lang.ada:55684 Date: 2019-02-26T21:00:11-05:00 List-Id: On Tue, 26 Feb 2019 18:32:12 -0500, lyttlec declaimed the following: >Often overlooked is that any "C-esque" POSIX compliant OS turns the >computer into a VAX. C was written to be easily translated into VAX >machine code and POSIX signals are all the original interrupts on a VAX. >If you have a CISC computer running VMS, C is your language. Pardon? The C language predates the VAX architecture by over half a decade, if not more. The language was created ~1972 (as a derivative of BCPL via the language B); it was PDP-7, followed by PDP-11. The VAX-11/780 was released near the end of 1977. Oh, and the high-level systems language used for the VMS OS just happens to be BLISS https://en.wikipedia.org/wiki/BLISS . Both predate POSIX (1988). -- Wulfraed Dennis Lee Bieber AF6VN wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/