BS. The model 90 and Model 95s have replaceable processor complexes from the 386, through the 486 and into the Pentium era. Also Cyrex made a 486 upgrade for the Model 70. It might also work on the 50, 65, P70, and 80 though I haven’t checked

The Enhanced Port Replicator sports one USB. For the single PS/2 port on the normal replicator there are PS/2 splitter cable to connect mouse and keyboard simultaneously. Nice video!

I didn't know Scotty knew so much shit about old IBM hardware, i thought his expertise was duotronic circuits from the 23rd century, and different upper shelf Scotches.

This video sucks.

no wonder why their company went to sh*t.

childs play.. present day apple is much much worse..

Nice video, thank you! I noticed your frustration with those dialog boxes closing when you click OK. That was (still is) a Windows convention - clicking OK in a dialog box must apply changes AND close it. Windows users would think something has gone horribly wrong if it didn't close. That's how/why the "Apply" button came into existence, which applies changes but keeps the dialog box open. It featured heavily in Windows 95 onwards, and also brought about the OCD behavior of religiously clicking Apply then OK to close a dialog box, even though clicking OK implicitly applies changes anyway 😅. But wait, what happens if you click Apply then Cancel? 😭

This is one a number of reasons why I avoided buying IBM back in the day. Regardless if all it took was a quarter to open the case and use as a tool.

Donkey, quite exciting game;)

They deliberately prevented upgrades so their good name wouldn't be destroyed by hacks who would make the system unstable. Overclocking wasn't a thing yet. They may have had alterior motives. But IBM computers were the most stable and excellent computers available. My friend's dad bought an IBM PC with an Epson FX -80 printer. I had a Commodore 64 at the time. I visited this friend nearly every afternoon and it didn't take me long to read the entire MS-DOS manual. While my friend was playing Flight Simulator 1.0, I would read the DOS manuals. His dad became upset to find that I had learned how to control the computer but his son had not. Lol. The IBM PC was a feat of engineering, stable and reliable. The software was rock solid and so was the hardware. Later I purchased an IBM PC Convertible, a laptop with an LCD monochrome display. It was awesome. Only when clones became commonplace did I experience hardware problems.

I preferred the Phoenix BIOS in some cases . Keep in mind the programs are not very complicated and can be modified once you know the algorithms for systems integrity check ( checksums and code words and phrases ) at each level even into operating system . Microsoft did not want its IBM compatible operating system to run on just anything and several manufacturers got together to keep Commodore machines from being able to run software and hardware compatible with the inflexable behemoths Apple and IBM at the same time , Commodore would have won the war if it could have survived the lawfare that IBM and Apple used money not merrit to corrupt the legal system . There we also " wars " between IO device manufacturers on mass storage , memory expansions , busses , protocalls , networking and still going on in video devices . There are now a diverse set of options when it comes to computer features there could have been more had not litigation kept hidden the facts that the " emperors had no clothes " . Big tyranny hates small flexible diversity causing unpredictable futures but innovation is way behind on what is good computer engineering because of the narrow channels that the tyrants imposed to keep their hegemonies .

They made a check on the graphics card for the word IBM in the ROM as in "Copyright IBM" at certain location. So other cards wrote "Compatibility requires the word IBM here" to be able to work. .

legent says you need to enter numbers from "the lost" for the bios to boot up with up to date latin characters.... dont trust the pagan bios.

When recording the screen you should set the manual focus. Except that tiny issue the episode was great! Thank you!

Used the regularly on my Amiga 500 using a KCS hardware PC add-on. It was basically using the A500 as a slave device for I/O, but it blows my mind how well it integrated and switched seemlessly between the Amiga OS: you could even copy/paste

Apple move

More than a month ago, RedHat released CentOS Stream 10 beta (a.k.a. EL10). Checkout the release notes because they are dropping support for X11 and KDE

Bill Gates co-wrote Donkey.bas

This was something IBM came out with later, after the first round of ATs, which did not have this lock in the BIOS. I doubt IBM ever said why they did this, but there are numerous reasons one could think of, any or all which could be true. I assume the XT 286 was locked down too, based on its late release in the PC cycle, before MicroChannel.

Very few games were written for PC back in the early 80's because a PC costs more than a car back then (if you include the RAM and video upgrades required for any type of game would require)

What killed xenix was the copyright battles

Thanks Dad (RIP) for buying me a Timex-Sinclair in 1983. Learned BASIC on it and have gone on to a successful IT career.

Time for IDA Pro I suppose :)

Well, i'm also from the 0.99 kernel age. compiling the complete linux system yourself. Arch is meant for the people that wants full controll over there system and are willing to put some effort in it. Nothing wrong with that.. I personally not using Arch, but i can understand why people would like Arch.. But about this video.. Arch Linux Suck... Except for the installation guide i see absolutely nothing viable why Arch should suck? What i understand from Arch if it's up and running it seems to be a very nice system. This title should be called "I'm lazy and do not want to put effort in Arch Linux" Instead of claiming that it sucks. Because you really do not know if it sucks, because you never tried it.

noooo! 😂 s c o not “sko”. i almost bought sco unix for my pc but the $500 they were asking seemed crazy for a home user single license.

That *was* graphics capability for the 5150 .. "Graphics" according to IBM is a 4 color bar chart (compared to their mainframe block text terminals). That's probably why the Wikipedia chart shows the Atari 400/800 in the lead for home PCs at that time.

AT Computer.... old fashioned

I didn't even know this was possible.

There used to be a DOS utility called "MOSLO" that was supposed to slow down your PC for the purpose of playing 8088 class games. Never tried it myself, but it was kind of popular in the 90s. But then again, you have probably come across it by now and it probably isn't effective enough for cycle dependent games.

CC misspells many key words, like "wait states" and "AT"

Now if only they would do the same with current CPU generations, like a RyZEN 5 for old RyZEN 1 motherboards or an Intel "10th gen" for "5th gen" motherboards. Noting of course that the generations in this video are from before the Intel "core" generations started counting .

Very very helpful video🎊

It’s not a sub-notebook , it’s a netbook!

i remember when it came out so cool...soooo expensive...you can now buy a 100 times stronger raspberry pi for nothing

im not sure your correct. when i was a kid i put a faster clock crystal in my 286 and it made everything faster. then i put an even faster clock crystal in and it EXPLODED the processor. we did it to the 8088 and 8086 also but they dont explode,, maybe my bios was... nonstandard?

The 3010CT and 3015CT were amazing for the time and far more useful than the 100 since they had a track point style pointer on a minimal but full keyboard. Toshiba made some amazing hardware for the time.

Ive watched about 7 videos now and not one mentions anything about magnetic screwdrivers if theyre safe to use or not, its like everyone forgot we have magnetic screw drivers, Man youtube disappointing me this time not having any info on this

Ir port was essential at the time. I could link my Nokia phone and get online over Irda

thank god we didnt have microsoft to poison the well of unix linux etc...them making windows was the best thing ever to happen

4:54, Microsoft licensed AT&T Unix and sold multi-tasking/multi-user/memory-protected Xenix.

I can't make a bootable Balena stick for my Mac OS Intel computer, the hack cannot be set for the mini SD card, do you have any idea?

thumbs down for left & right sides of the video being edited out!

All works great with MS-DOS/FreeDOS PC and Ubuntu 22.04 PC, but if I need use Ubuntu WSL (Windows 11), how I can forward raw ethernet frames from MS-DOS (Client) to Ubuntu WSL (Server)? Thank you

Best thing z80 had was it alternate registers ie dual registers was great for interupts so you did not have to push your registers to the stack you just used the alternate register so one instruction and bang service your interrupt and just swap em back before you leave. Tv

It's fun to see all these early DOS games, great video! I'm surprised there were computers in Scotland back then, I thought the North was still just stone huts and sheep in 1991.

3.1 was my first ever Windows (and, for that matter, computer) experience. It was at school, on a 486DX2/66 MHz computer with 8 MB of RAM, so it was a lot faster than the 286 shown in the video. Thanks for this "window" into days long gone! (pun intended)

The 5170 “AT” is the same way. Just replace the BIOS with AMI, Phoenix or Award BIOS and it won’t do that. Then you can overlock a bit.

Thank you ! Awesome documentary. Cheers from France