Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Gordon Henderson Newsgroups: alt.folklore.computers,comp.os.linux.misc Subject: Re: The joy of FORTRAN Date: Sat, 28 Sep 2024 11:35:33 -0000 (UTC) Organization: Drogon Towers Lines: 50 Message-ID: References: <69CJO.19675$MoU3.4646@fx36.iad> Injection-Date: Sat, 28 Sep 2024 13:35:33 +0200 (CEST) Injection-Info: dont-email.me; posting-host="35741916ccbd0f8002b5589ddfead35f"; logging-data="1299813"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/4fj7lReUKz0zrCMwe1OCx" Cancel-Lock: sha1:ckRjln419oOwqFl7C6LhBaeYA4s= Originator: gordon@yakko.drogon.net (gordon) X-Newsreader: trn 4.0-test77 (Sep 1, 2010) Bytes: 2867 In article , Charlie Gibbs wrote: >On 2024-09-27, R Daneel Olivaw wrote: > >> Charlie Gibbs wrote: >> >>> And on the operating system side, I know of >>> OS/2, OS/3, OS/4, OS/7, and OS/9. >> >> OS1100 bzw. OS2200. > >Right, forgot about them. Univac was a big contributor to >OS/; in addition to 3, 4, and 7 above, they also >had OS-100 and OS-500 for variations of their 9300 operating >system that hung a Unicscope 100 or a DCT-500 terminal >onto the machine. These were seldom used - we didn't need >much help filling out the 32K of memory available to us. > >Is there an OS/5 or an OS/6 so we can complete the set >of one-digit numbers? c1792 on the Modular One computer: OS6 An Operating Systems for a small computing system Joseph Stoy and Christopher Strachey ABSTRACT Part I is a general description of a simple operatirg system, which runs in a virtual machine (implemented on a real machine by an interpreter). OS6 copes with only one user at a time, and is not a multiprogramming system: many major problews associated with large operating systems have therefore been avoided or considerably simplified. It nevertheless has several features of interest, including the fact that it is written almost entirely in the high-level language BCPL. The most important single feature, however, is the hierarchical nature of its control structure, which avoids the need for a special job-control language. Part II covers the facilities for input/output, and the handling of files on the disc. The input/output system uses a very general form of stream; the filing system is designed to have a clear and logical structure. -Gordon