* 1MB RAM
* 256K ROM
* 7.16 MHz (yes, that's 0.007 GHz :)) Motorola 68000
There were different ways of expanding the Amiga RAM and the demo became so popular it was reverse engineered by a popular cracking group Skid Row[3,4]., patched and re-distributed
[1] http://amiga.resource.cx/exp/a501
[2] http://en.wikipedia.org/wiki/Amiga_500
In some sense it's really like a 1.7 MHz machine. And that's being generous.
The master clock crystal oscillator on the motherboard was set to be 2 clock cycles per pixel and other chips clocks were derived from that.
Hence the CPU was set to 1/4th of master clock, so the European PAL[1] machines (a 50fps TV standard) actually ran slightly slower than the American NTSC[2] machines (a 60fps TV standard with a smaller vertical resolution).
I was the only one from my friends having a PC at home instead of an Amiga, but luckily we had lot of scener parties at their places so I got to learn lot about the system.
It was an environment ahead of its time with dedicated hardware for sound and graphics, pure multitasking even if lack of MMU meant occasional crashes and the whole libraries concept was great.