1st one was just a toy: Commodore 128 with external 5.25 floppy and Commodore printer (which, interestingly, wouldn't work with the computer very well).
The 2nd one I still remember the specs on.
386DX-40 (AMD made the 40MHz for Intel at the time)
4MB of RAM that I upgraded to 8
Tseng Labs 4000 graphics card with a whopping 1MB of RAM
130MB Maxtor hard drive
15" non-interlaced monitor
8 bit Sound Blaster card
Shipped with DOS 3.0, but no disks.
One of the first things I did was fdisk the drive, thereby turning it into a brick since I didn't have an OS to put back on.
Since I was out of options, I had to talk the local computer shop into selling me a copy of DOS 5 (it wasn't suppossed to be sold without a system, I guess).