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JonB256 View Drop Down
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  Quote JonB256 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2008 at 7:24pm

Quick - what was the difference between Extended Memory and Expanded Memory?

and the A20 gate?

JonB - D-Light user
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jberner View Drop Down
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  Quote jberner Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2008 at 8:08pm
Originally posted by LightChristmas

OK. Lets see how much of an "old fart" you are.
What was this used for?    debug -g=c800:1
and
drivparm /D:x /F:7 /I

Sucks to be an apple user. I hope you grew out of that habit somewhere along the lines...

OPEN15,8,15,”N0:”DISKNAME,ID”:CLOSE 15

was the true mans (or kids) way to format a disk.
Originally posted by LightChristmas


And of course - Desqview and QEMM86

Deskview was an early gui if i remember right and qemm was a memory manager that was better than emm368.exe.  Heck I thought I ruled the world when I ran a commodore 128 BBS with 2.2Mb storage online including early multiplayer games.

Himem.sys, the first useful dos memory manager put small TSR code and other drivers like mouse.sys in to the space between the 640K and 1mb barrier.  Emm386 and later qemm allowed you to put those and other types of programs in to memory beyond the 1mb limit which enabled the use of memory hog software like NIC, CD-ROM and sound card drivers in DOS which ultimately allowed us to have "great" games full of crappy grainy video for years to come. Man, what I wouldn't do for a 5K NIC driver again.

I believe Expanded was the space between 640 and 1mb and extended was the space after 1mb if memory serves my correctly

Sorry, the geek in me is coming out...

(edited for spelling- I didnt fact check so I hope I got those right)


Edited by jberner - 25 Nov 2008 at 8:13pm
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LightChristmas View Drop Down
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  Quote LightChristmas Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2008 at 8:39pm
g=c800:1 was used primarily to acces/launch the low-level format pgm for MFM, RLL and some SCSI drives. Most SCSI controllers used g=c250:5

Can't believe no one got the Drivparm - that particular command argument was used to get DOS to "see" 3.5" FDDs.

Desqview - allowed multitasking on pre-windows systems, while QEMM broke the 640K barrier and allowed expanded/extended memory to be interchangeable on the fly.

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  Quote jberner Quote  Post ReplyReply Direct Link To This Post Posted: 25 Nov 2008 at 9:41pm
I saw drivparm on an apple in highschool, hense my comment about it. When I saw your response after mine I goggled it and it appears that it was on an apple to allow use of an IBM floppy drive, which I guess i didnt realize at the time.  I do remember the pascal teacher being excited she had 2MB on her Apple. I thoought she was an idiot because i had that on my commodore for a year+ when she got that on her crapple 2.  I was a commadork so you will have to forgive me for not realizing that one piece of inferior hardware was running another...  Tongue
I have to admit if you were typing that in dos you have me beat...  I came to Dos in 3.0 (or 3.2, that rings a bell too) and was mad because my 72MB ESDI hard drive had to be partitioned in to multiple drives until 3.3 came out. 

How many folks out there had a 287 co-processor?


Edited by jberner - 25 Nov 2008 at 9:45pm
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  Quote Pony_God Quote  Post ReplyReply Direct Link To This Post Posted: 26 Nov 2008 at 8:45am
Originally posted by jberner

I believe Expanded was the space between 640 and 1mb and extended was the space after 1mb if memory serves my correctly
 
Sounds right, or the other way around...
 
g=c250:5... That's sounds more correct... I never low-level formatted many MFM or RLL drives, just normal formatting those huge 20M 1 cubic foot drives that took an hour to spin up.
 
Drivparm, really? 3.5"ers? I've never had any issues accessing any 3.5 drives, nor 5.25 drives for that matter.
 
Ah... the extra math co-processor. You had the proc, but have it do math? oh, far too much work. No moath-co was an option up to the 486SX erra, wasn't it?
 
I loved those grainy games! Man, they were FAST on less than an average cell phone today. Though in some sprites, some assembly in certains places and let-her-go! AND They fit on 1 or 2 floppies! There just wasn't ANY overhead in there.... and I don't remember any bug fixes/patches every months like today's games.
 
5K nic driver? You don't like that the 100M driver also installs 300M of utilites, managers, registry changes, auto-loaders, balancers, notification utilites, and auto-updaters?
Man, I remember carrying around a single floppy that had multiple drivers, common files, a boot sector, telnet, and some misc. system utilites on it.
Fine. You're so smart you rig up the lights.
D-Light users Unite!
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kalifi View Drop Down
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  Quote kalifi Quote  Post ReplyReply Direct Link To This Post Posted: 26 Nov 2008 at 11:03am

I just know my dad was pissed when I played with his 5.25 floppys with...magnets...Angry

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