The good old "hitting the hardware directly" was a common turn of phrase at the time. Pinball Fantasies AGA did launch from Workbench and I think that was the main reason it got so much play in my uni flat as my flatmates didn't have to risk my wrath by rebooting my machine, if I was out , to play it.
If the current system has been acceptable for 7 years, I'm guessing the users needs aren't something so mindbogglingly critical that risk must be removed at any cost. Equally, if that was the case, the business would be either bringing in an experienced team or writing a blank cheque to an external party, not giving it to the guy who changes passwords and has spent the last week putting together a jigsaw of every enterprise option out there, and getting an "n+1" tattoo inside his eyelids.
Finally, 7 years isn't exactly old. We've got a subsidiary company of just that size (150 users, 10 branches) running on Proliant 1600/2500/5500 gear (ie 90's) which we consider capable for the job, which includes Oracle 8, Citrix MF plus a dozen or so more apps and users on current hardware. We have the occasional hardware fault which a maintenance provider can address same day, bill us at ad-hoc rates yet we still see only a couple of thousand dollars a year in maintenance leaving us content that this old junk is still appropriate no matter which we we look at it.
Absolutely, no argument there, the BBC crammed a lot in, especially given it was in many ways a rush job too. My post was purely on the subject of the BBC having the 8 digital IOs and 2 Analogue which schools seemed to think was a unique features... apparently right into the 90's. IN 1981 I was given a Vic-20 and thereafter was extremely jealous of those that got BBC's...to the point that I even used to POKE the VICs screen and border black, text white, type an underscore and cursor back over it to make it blink
Now, I'm not sure if it's a direct equivalent, but the Zorro slot on the Amigas did allow for the addition of both regular CPUs and/or an FPU. On my A500 I had a card with an 8086 in the trapdoor to enable 'native' DOS compatibility. Anyway...as you say, different vintage.
"God is a comedian playing to an audience too afraid to laugh." - Voltaire