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Groups > alt.comp.os.windows-11 > #17456
| From | Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> |
|---|---|
| Newsgroups | alt.os.linux, alt.comp.os.windows-11 |
| Subject | Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? |
| Followup-To | alt.os.linux |
| Date | 2025-02-25 12:28 +1100 |
| Organization | A noiseless patient Spider |
| Message-ID | <puiv8l-7h2.ln1@otis.foo> (permalink) |
| References | (9 earlier) <vp98p7$39qfl$1@dont-email.me> <pk3m8lxq3t.ln2@Telcontar.valinor> <67b8c8ac$0$22$882e4bbb@reader.netnews.com> <HaecnaNTENH3SSX6nZ2dnZfqnPqdnZ2d@earthlink.com> <67ba2b89$2$1786$882e4bbb@reader.netnews.com> |
Cross-posted to 2 groups.
Followups directed to: alt.os.linux
Groovy hepcat Mark Lloyd was jivin' in alt.os.linux on Sun, 23 Feb 2025
06:54 am. It's a cool scene! Dig it.
> On Fri, 21 Feb 2025 19:30:50 +0000, Ant wrote:
>
>> In alt.comp.os.windows-11 Mark Lloyd <not.email@all.invalid> wrote:
>>> On Fri, 21 Feb 2025 12:11:53 +0100, Carlos E.R. wrote:
>>
>>> [snip]
>>
>>> > Yes, an optional separate coprocesor was used initially. If it was
>>> > not inserted, an operation trying to use a coprocesor instruction
>>> > would raise an exception, which would be attended and the
>>> > instruction emulated in software by the program, which was
>>> > significantly slower.
>>
>>> IIRC, the 286 was the first to have that exception, although there
>>> were programs to emulate it on older systems. If I remember right,
>>> the turbo C compiler would replace every floating point instruction
>>> with a call to a routine that checked for a FPU. If it found one it
>>> would replace that call with the FPU instruction and return to a few
>>> bytes earlier to run that instruction, otherwise it would emulate
>>> it.
>>
>>> [snip]
>>
>> What about 386SX? IIRC, it didn't have a coprocessor like DX. I can't
>> remember!
>
> No 386 had a coprocessor. You could add a 387 to the system (I don't
> remember if there was a 387SX). IIRC, it was also possible to use a
> 287.
Yes, there was a 387SX. And co-processors (or FPUs, as they're more
correctly called) for PC family CPUs go right back to the 8087 to go
with the 8086/8088. So a PC/XT could have an FPU too.
> The difference between 386SX and 386DX was a limited (24-bit instead
> of 32-bit) address bus, and a multiplexed (32-bit) data bus.
For anyone who doesn't know what that means; the 386SX had a 16 bit
data bus, the same as the 286. All 32 bit memory access instructions
had to "thunk" between the internal 32 bit registers and the external
data bus, meaning that a 32 bit memory access had to be done in two 16
bit accesses.
> It was with the 486 that the DX meant it had a coprocessor. There was
> also a 486DX2 that ran at a doubled clock speed.
Right. There is also a 486DX4, which runs at 4 times the clock speed.
And the 486SX had no built-in FPU, so there is a 487SX to go with it.
--
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-------------- Shaggy was here! ---------------
Ain't I'm a dawg!!
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So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-17 00:39 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E. R." <robin_listas@es.invalid> - 2025-02-16 15:06 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "s|b" <me@privacy.invalid> - 2025-02-16 15:45 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-18 19:37 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-18 19:43 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Dan Purgert <dan@djph.net> - 2025-02-18 12:01 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-18 09:41 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-18 20:32 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-18 14:51 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-18 21:59 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-16 09:59 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Herbert Kleebauer <klee@unibwm.de> - 2025-02-16 16:43 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-16 16:21 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Rick <rick@nospam.com> - 2025-02-16 11:33 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-18 20:00 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-18 19:56 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-18 11:17 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-21 18:02 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-21 12:02 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-21 22:55 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-21 14:16 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-26 00:23 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-25 14:38 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? John <Man@the.keyboard> - 2025-02-25 13:43 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-26 16:24 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? John <Man@the.keyboard> - 2025-02-26 10:38 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-26 08:20 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Herbert Kleebauer <klee@unibwm.de> - 2025-02-27 09:55 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-25 14:30 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Java Jive <java@evij.com.invalid> - 2025-02-21 11:07 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-21 15:19 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-26 16:04 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-26 18:15 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? John <Man@the.keyboard> - 2025-02-26 10:40 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-26 07:08 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-26 15:29 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-27 19:00 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-27 03:52 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-27 11:24 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-27 13:57 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-27 09:53 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-27 15:31 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-27 13:27 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-27 19:00 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-27 20:37 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-28 19:38 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-28 11:13 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-03-02 02:36 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-03-02 00:51 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-03-02 18:59 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-03-04 23:32 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-03-01 22:13 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? ant@zimage.comANT (Ant) - 2025-03-01 22:27 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-03-02 00:41 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-03-02 01:06 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? TJ <TJ@noneofyour.business> - 2025-03-03 10:22 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-03-04 19:26 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-27 14:05 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-28 20:06 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Frank Slootweg <this@ddress.is.invalid> - 2025-02-28 11:24 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-28 14:50 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Newyana2 <newyana@invalid.nospam> - 2025-02-16 10:53 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-16 14:04 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E. R." <robin_listas@es.invalid> - 2025-02-16 21:52 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-02-17 19:40 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Char Jackson <none@none.invalid> - 2025-02-16 20:15 -0600
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-17 21:05 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Char Jackson <none@none.invalid> - 2025-02-18 02:31 -0600
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-18 13:29 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-18 20:29 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-20 21:09 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-20 13:27 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Stan Brown <the_stan_brown@fastmail.fm> - 2025-02-20 17:46 -0800
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-21 18:08 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-21 12:11 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Mark Lloyd <not.email@all.invalid> - 2025-02-21 18:40 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? ant@zimage.comANT (Ant) - 2025-02-21 19:30 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Jasen Betts <usenet@revmaps.no-ip.org> - 2025-02-22 04:02 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Mark Lloyd <not.email@all.invalid> - 2025-02-22 19:54 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2025-02-25 12:28 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-21 22:37 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Mark Lloyd <not.email@all.invalid> - 2025-02-22 21:58 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? "Carlos E.R." <robin_listas@es.invalid> - 2025-02-25 14:19 +0100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Mark Lloyd <not.email@all.invalid> - 2025-02-21 18:36 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Richard Kettlewell <invalid@invalid.invalid> - 2025-02-21 08:34 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Mark Lloyd <not.email@all.invalid> - 2025-02-21 18:31 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Jasen Betts <usenet@revmaps.no-ip.org> - 2025-02-22 03:53 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Rick <rick@nospam.com> - 2025-02-16 10:54 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Ed Cryer <ed@somewhere.in.the.uk> - 2025-02-16 17:01 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-18 09:57 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Stan Brown <the_stan_brown@fastmail.fm> - 2025-02-16 10:34 -0800
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Dan Purgert <dan@djph.net> - 2025-02-17 08:52 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-17 14:49 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Daniel70 <daniel47@eternal-september.org> - 2025-02-18 20:17 +1100
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Jasen Betts <usenet@revmaps.no-ip.org> - 2025-02-21 10:35 +0000
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-21 12:41 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? TJ <TJ@noneofyour.business> - 2025-02-26 18:53 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Paul <nospam@needed.invalid> - 2025-02-26 20:14 -0500
Re: So far OT ..... DVD+R v DVD-R ... What's the difference?? Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-03-02 02:39 +0000
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