PC as a bootloader (was Re: Bluefish HTML Editor)

From	Lars Poulsen <lars@beagle-ears.com>
Newsgroups	comp.os.linux.advocacy, comp.os.linux.misc, alt.os.linux.ubuntu
Subject	PC as a bootloader (was Re: Bluefish HTML Editor)
Date	2024-09-25 19:33 -0700
Organization	AfarCommunications Inc
Message-ID	<vd2h55$1aa5$1@dont-email.me> (permalink)
References	(1 earlier) <vcfqa8$8ref$1@dont-email.me> <eg3HO.8194$MxR.395@fx47.iad> <vcjcf2$10tfo$8@dont-email.me> <6cscskx18n.ln2@Telcontar.valinor> <vd0oap$3knoh$5@dont-email.me>

Cross-posted to 3 groups.

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On 2024-09-20 10:41, The Natural Philosopher wrote:
>>> DOS is still used in a lot of industrial kit ...When all you want is 
>>> to load a single tasked application that talks to custom hardware...

On 25/09/2024 08:57, Carlos E.R. wrote:
>> Makes sense. I worked in that sector in the 90's. The only problem 
>> with MsDOS was the small memory available. We had to use overlays in 
>> the software, or load/download programs with a stub.
>> Well you could in theory kick the processor into 'large' mode and use a 
>> lot more memory

In the mid 1980s, my group was building a small communications 
appliance. We built a single-board PC and used a DOS clone as our 
bootloader. But booting from floppy was slow as molasses, until I wrote 
a small TSR (terminate-and-stay-resident) extension that hooked the BIOS 
read call and buffered a track at a time. Simple and efficient.

Later, we built at larger, modular system. We found it more economical 
to buy a Taiwanese PC motherboard than to roll our own system package. 
We put a DOS Extender to good use (80386 in 80286 protected mode). The 
multitasking part of KA9Q was in there somewhere.

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Bluefish HTML Editor Diego Garcia <dg@chaos.rocks> - 2024-09-18 15:44 +0000
  Re: Bluefish HTML Editor Joel <joelcrump@gmail.com> - 2024-09-18 14:38 -0400
    Re: Bluefish HTML Editor Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2024-09-18 20:10 +0000
      Re: Bluefish HTML Editor "Kerr-Mudd, John" <admin@127.0.0.1> - 2024-09-18 21:15 +0100
  Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-18 20:12 -0400
    Re: Bluefish HTML Editor azigni <azigni@yahoo.com> - 2024-09-19 02:01 +0000
      Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-18 20:59 -0700
    Re: Bluefish HTML Editor Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2024-09-19 04:53 +0000
    Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-19 12:07 +0100
      Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-19 08:53 -0400
        Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-19 20:42 +0000
        Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-20 09:29 +0100
          Re: Bluefish HTML Editor chrisv <chrisv@nospam.invalid> - 2024-09-20 06:59 -0500
            Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-20 08:33 -0700
              Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-21 00:04 +0000
            Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-20 17:34 +0100
              Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-21 00:02 +0000
            Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-20 16:59 -0400
              Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-20 23:19 +0200
                Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-20 22:30 -0400
                Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-21 13:33 +0200
                Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-21 19:34 +0100
                Re: Bluefish HTML Editor Mark Lloyd <not.email@all.invalid> - 2024-09-22 18:02 +0000
                Re: Bluefish HTML Editor Chris Ahlstrom <OFeem1987@teleworm.us> - 2024-09-22 14:39 -0400
                Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-25 09:51 +0200
                Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-25 07:27 -0400
                Re: Bluefish HTML Editor Mark Lloyd <not.email@all.invalid> - 2024-09-25 18:57 +0000
                Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-25 18:15 -0400
                Re: Bluefish HTML Editor Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2024-09-26 16:18 +0000
                Re: Bluefish HTML Editor Mark Lloyd <not.email@all.invalid> - 2024-09-25 18:54 +0000
                Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-26 21:05 +0200
                Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-21 09:19 +0100
                Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-21 11:00 -0400
          Re: Bluefish HTML Editor not@telling.you.invalid (Computer Nerd Kev) - 2024-09-21 09:14 +1000
    Re: Bluefish HTML Editor clinker <azigni@yahoo.com> - 2024-09-19 18:23 -0600
      Re: Bluefish HTML Editor Joel <joelcrump@gmail.com> - 2024-09-19 20:35 -0400
      Re: Bluefish HTML Editor Paul <nospam@needed.invalid> - 2024-09-19 22:07 -0400
      Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-20 09:41 +0100
        Re: Bluefish HTML Editor chrisv <chrisv@nospam.invalid> - 2024-09-20 07:07 -0500
          Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-20 08:39 -0700
          Re: Bluefish HTML Editor Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2024-09-20 18:40 +0000
            Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-20 19:11 +0000
              Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-20 18:13 -0700
              Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-21 11:13 +0000
            Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-21 00:00 +0000
              Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-20 18:15 -0700
                Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-22 01:15 +0000
                Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-21 22:35 -0700
                Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-22 07:08 +0000
            Re: Bluefish HTML Editor Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> - 2024-09-20 18:08 -0700
              Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-21 09:21 +0100
        Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-20 23:58 +0000
        Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-25 09:57 +0200
          Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-25 11:23 +0100
            PC as a bootloader (was Re: Bluefish HTML Editor) Lars Poulsen <lars@beagle-ears.com> - 2024-09-25 19:33 -0700
          Re: Bluefish HTML Editor Chris Ahlstrom <OFeem1987@teleworm.us> - 2024-09-25 07:17 -0400
          Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-25 21:20 +0000
            Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-26 21:17 +0200
              Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-26 21:02 +0000
                Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-27 03:31 +0200
              Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-27 02:13 +0100
                Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-27 01:29 +0000
                Re: Bluefish HTML Editor "Carlos E.R." <robin_listas@es.invalid> - 2024-09-27 03:32 +0200
      Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-20 13:40 +0000
        Re: Bluefish HTML Editor Chris Ahlstrom <OFeem1987@teleworm.us> - 2024-09-20 10:57 -0400
          Re: Bluefish HTML Editor Chris Elvidge <chris@internal.net> - 2024-09-20 17:35 +0100
            Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-20 19:20 +0000
              Re: Bluefish HTML Editor Chris Ahlstrom <OFeem1987@teleworm.us> - 2024-09-20 15:58 -0400
              Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-21 10:34 +0000
                Re: Bluefish HTML Editor Rich <rich@example.invalid> - 2024-09-21 15:32 +0000
                Re: Bluefish HTML Editor Anti-Skeptic <r@kkkkk.com> - 2024-09-21 17:30 +0000
                Re: Bluefish HTML Editor Lester Thorpe <lt@gnu.rocks> - 2024-09-21 18:50 +0000
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          Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-21 23:22 +0000
          Re: Bluefish HTML Editor The Natural Philosopher <tnp@invalid.invalid> - 2024-09-22 14:53 +0100
      Re: Bluefish HTML Editor Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-09-20 23:55 +0000
      Re: Bluefish HTML Editor vallor <vallor@cultnix.org> - 2024-09-21 01:28 +0000

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