Hi, I'm Eugen!
When I take a look at the first microcomputer that I ever had I remember that it was like the "smart-phone" of that time (note: in few years the today's smartphone will become my first microcomputer). 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. If 4MHz doesn't look much to you you should know that it includes 4 million CPU clock cycles (and that's a lot!).
In '91 my parents bought me a HC-91 produced at Ice-Felix Bucharest. It was about 233$ - the whole salary for one month - and its working RAM was about 48K (of which 8K was reserved for video memory).
It has a Zilog Z80 4MHz CPU. Today there are smart-phones that has a core that runs 380 times faster!
Few years later ('94 or smth.), while I was studying Computer Science in Bucharest, I bought a second-hand PC laptop. It was a Toshiba Tandy 1000, 7.16 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 program I had to use 6 different floppy diskettes and the process took from 30 minutes to hours. I was very ambitious at that time, I have to admit it. Anyway, this heavy lazy laptop helped me a lot so I just want to pay tribute to it by showing its picture:
Compare these machines with the today's computers and try imagine learning programming with these (let alone no Internet at that time!). 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 the smallest typo.
I don't know if this is evolution or devolution but nowadays I'm playing with a new $35 toy called Raspberry-Pi. As Linux works on everything from smart-phones to the supercomputers, as Gentoo is one of my favorite Linux distribution, my R-Pi runs of course on Linux (namely Gentoo).
@edit: lately I'm in love with Atmel's AVR and Microchip's PIC micro-controllers. Arduino Mini is a 16MHz spirit hidden in a 3cm thin silicone shell that's less than $2 on eBay. Can you believe that?
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 favorite Linux distribution, the Gentoo 64-bit.
The old computers are like the old cars, they break but you still can fix them. And I like to fix anything I can!