Hi, I'm Eugen!
When I take a look at the first microcomputer that I ever had I remember that it was the "smart-phone" of that time. At least it was to me. It was that 4MHz computer that witnessed my first PRINT "Hello World" command and which after a while showed me that it could run like a Arab horse if you know when and how to use LD, MOV, POP and JMP.
In '91 my parents bought me a HC-91 produced at Ice-Felix Bucharest. It was about 233$ and the working RAM was about 48K (of which 8K was reserved for video memory).
It has a Z80 3.5MHz CPU. Today there are smart-phones that has a core that runs 380 times faster!
Few years later (like '94), while I was studying Computer Science in Bucharest, I bought a second-hand PC. It was a Toshiba Tandy 1000, 4.77 Mhz 8088 CPU, no hard drive, 728Kb RAM, only 2 x 3,5 floppy drives. To load the Borland Turbo C and later to compile a source code I had to use 6 different floppy diskettes and the process took from 30 minutes to hours. Perhaps that's why 2 years later I've dropped out the classes. Anyway this heavy lazy laptop helped me a lot so I just want to pay tribute to it at least by a picture:
Compare these machines with the today computers and try imagine learning programming with these :-D. It had an advantage though. It thought me to think twice and write once, otherwise I had to wait for another 2 hours to compile "that mistake".
I don't know if this is evolution or devolution but nowadays I'm playing with a new $50 toy called Raspberry-Pi. As Linux works on everything from smart-phones to the supercomputers, as Gentoo is one of my favourite Linux distribution, my R-Pi runs of course on Linux (namely Gentoo).
I am still attached/devoted to my old HP dc7900 minitower which happily runs Linux (Gentoo) 64bit. For specific client-server applications I use an old HP server ML350G5 (which has plenty of RAM, SCSI disks, CPUs) where are hosted multiple concurrent OS instances (such as Windows, Linux, BSD) on top of KVM hypervisor that of course runs on my favourite Linux distribution, the Gentoo 64-bit.
The old computers are like the old cars, they break but you still can fix them. Nowadays you would rather have to buy a new one as if the Universe entropy wouldn't be large enough anyway.