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=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,6192a34d0c9ffe5b X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!feeder3.cambriumusenet.nl!feed.tweaknews.nl!138.195.8.3.MISMATCH!news.ecp.fr!news.jacob-sparre.dk!pnx.dk!jacob-sparre.dk!ada-dk.org!.POSTED!not-for-mail From: "Randy Brukardt" Newsgroups: comp.lang.ada Subject: Re: DOS, was Re: Ada Tutor Web Site Shutting Down Date: Fri, 13 May 2011 19:26:10 -0500 Organization: Jacob Sparre Andersen Research & Innovation Message-ID: References: <7f53de8e-2400-4c87-a818-0b389e117c42@e21g2000yqe.googlegroups.com> <2aeab5d1-fa6d-47de-ab53-9a8e6ab5f27a@h9g2000pre.googlegroups.com> <3a6f1fc2-3ae0-42d9-b483-d16cf7ab1566@x8g2000prh.googlegroups.com> <991499fb-bc24-4d7e-baf6-a9c0e16333e6@k22g2000yqh.googlegroups.com> <291504a4-ec55-45f1-bf7f-13078bf71c3e@m10g2000yqd.googlegroups.com> <4dcbf260$0$6992$9b4e6d93@newsspool4.arcor-online.net> <3bae2d75-31b0-4a88-b655-bd657921d15c@z7g2000prh.googlegroups.com> <4dcc5c75$0$6891$9b4e6d93@newsspool2.arcor-online.net> NNTP-Posting-Host: static-69-95-181-76.mad.choiceone.net X-Trace: munin.nbi.dk 1305332773 6055 69.95.181.76 (14 May 2011 00:26:13 GMT) X-Complaints-To: news@jacob-sparre.dk NNTP-Posting-Date: Sat, 14 May 2011 00:26:13 +0000 (UTC) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6090 Xref: g2news2.google.com comp.lang.ada:20233 Date: 2011-05-13T19:26:10-05:00 List-Id: "Rugxulo" wrote in message news:b31ad9d8-659d-40b8-8776-61b7334beb9d@s11g2000yqj.googlegroups.com... ... >> - More than once I had to give up a floppy or hard disk whose >> FAT got shot. The BIOS would help with reading out relevant >> sectors; but if the dangling pointer had hit the right sector, >> no BIOS would help, A few companies were flourishing because >> they provided forensic analysis and repair; had DOS had a >> quality file system, PC Tools, Norton, etc. would have had >> a different business plan. > >FAT is primitive, yes, and I do think DOS needs newer file systems. But it was ways better that the floppy file system in CP/M, especially the original everything is stored in 128 byte blocks file system! And floppies fail often. And sometimes they fail so you can't read the directory. You have to expect that, and I don't think any file system could really protect against that (RAM backup makes no sense for floppies, since their whole advantage is the ability to change them and move them). In any case, it's silly to look at DOS, designed around 1980, and make assumptions about it based on what we can do today with a 5000 times more memory and a processor that is 5000 times faster. Randy.