My oldest currently running computer isn't too old (maybe circa 2006), but I've a real workhorse of a keyboard.
It came with Pentium 166 (with MMX ) in the summer of 1996, it has the unusual feature of having the specialised Windows 95 keys, and an old-skool AT plug that even when new, had to be fitted with a PS2 adapter.
It's been a real favourite to type on and it's coming up to 20 years of heavy daily use.
Even though I'm employed as a software developer the first contact with any kind of programming language was when I already was in my 20's. I learned C/C++, then Java at the University and at work I'm mostly using C#. Some Java as well and I'm also forced to use Delphi (urgh). I also did some programming work in Perl at my old company, but that language gives me headaches (quite literally!).
I really should dig out some of those old Amiga BASIC books and try to write some programs in that one, heh.
In one sense, Acorn won. Updated versions of its CPU, the Acorn RISC Machine or ARM, are used in mobile electronics everywhere. Unfortunately I don't think we ever saw an Archimedes (or even a BBC Micro) "on this side of the pond".
Yes the RISC technology lives on to this very day from the cell phone to the raspberry pi. I believe Russia will be utilizing some ARM technology in its new in-house processors. I hope Russia can make a secure processor so we can get away from GCHQ and NSA spy chips from hell. The Micromen film was fun to watch and brought back fond memories. In my opinion the BBC Micro was trash but the Archimedes was a beast.
I frequent that site. I've spent HOURS giving the files proper naming conventions for Windows machines while downloading the files individually. Thank God for 7-Zip's batch decompression. I found Daxx first, but then dropped it for a while. Later I came across off1k's mixes and started snagging tunes like crazy once I got hooked on dat Amiga Junglism. I sometimes upload tracks played in ImpulseTracker to YT, in mono/non-interpolated of course. Well… these days.
You should also check out various LSDJ artists like Danimal Cannon, Trey Frey, and Electric Children. They usually use a pair of them. Little Sound DJ is a ROM for the Game Boy (and GBC) that uses it's built-in sound system, and no, they aren't using emulators. It can use samples as well I think. It's as retro as composing with Protracker, but a lot more popular for some reason - it's probably that "chiptune" scene that causes it. Some people even have their GB's modified to have balanced (RCA) audio out!
Trey Frey's Très Frais is the current set of anthems in LSDJ composing and production. It even had 250 12" vinyls of it pressed. However, not all of the remixes use LSDJ, such as Tri Angles' mix - he uses Logic Pro X for OSX.
My other favorite concerning making music with old machines is HeavyW8bit who went so far as to make two whole ROMs for NES, one of which turns it into a complete-package live synthesizer, called NESK-1. He even pulled apart one of those toy synths to make a keyboard for it. His tunes usually comprise of a GB (possibly with LSDJ), an NES, and a C64 running Synthcart. He swaps between them in real time while it all mixes down into some recording software. It's a shame he's not more popular.
If you have high budget, go for i5 or i7 with graphic card (2 cores isn't enough for future); if you have medium budget, go Amd FX series with graphic card; other wise Amd APU with a high performance Ram is a good choice. But I think you should investigate to other part too like power supply, a good power supply save your bill very much (a good power supply can be with you over 10 years); a high grade mother board make your entire system run smooth and effective; a SSHD is good choice for HDD if you don't have a budget for a SSD. Keep balance your PC parts, a high performance Cpu/graphic card only can't bring full potential of your PC, like driving on off road with a F1 car.