danb35:
What a change there's been to the meaning of "mini computer"...
I dunno, it depends on what you mean by a mini-computer.
Lets see, the Data General Eclipse I started working on in 1979 had 2-3 120 megabyte drives on it. My Raspberry Pi has an 8 gigabyte SD card. I don't recall the amount of memory, but I think the initial machine was measured in kilobytes (probably 256K or 512K), and my r-pi came with 256 megabytes (newer ones come with 512M if I recall correctly). I wasn't able to find the frequency of the machine, but I have to believe the 700 Mhz of the r-pi would leave it in the dust. True, it doesn't have the 6250bpi tape drive, nor the terminal adapter that let the 5 of us in the group use the machine at the same time on our 24x80 character terminals.
Now, back when I worked at DG, one of the guys had a definition for what was a real computer. He said, take your IBM PC, and place it on top of his Digital PDP-8, and both computers will work fine. Now, put the PDP-8 on top of the IBM pc, and the PC would no longer work, since the heavier PDP-8 would squash it. That is perhaps the one area the old iron wins out (other than the consoles of the old iron, but then with the GPIO pins on the r-pi, you can create your own blinking lights).