Dang, i had 2 of thoes when i was in high school, both of which i found at different times laying out side for the trash guys to pick up. Mine had a warning lable on the top indicating that the machine was 20kg and that you should use caution when lifting.
They were both 286 systems with mca buss. Cards installed were a pain, as you needed a disc to load the firmware or someting. I hated mca buss, loose the disk you are screwed. And this was before i had internet access.
One of the machines had a 286->386 upgrade chip. They are built like tanks, very hevy, lots of steel. The handle was a nice touch. The handle it's self was solid steel, and probably weighed like 5 pounds.
The harddrive that was installed in both was quite large(physically), a full height 5.25 brick that took like 20 seconds to spin up, and sounded really cool. It was mounted with blue rubber mounts.
Both could do 320x200@256 color. They could both drive 640x480 but i dont remember the color depth ( probably 16)
Memory was limited, i think on may have had 8mb, the other 4.
Used the upgraded one mainly for runnin my qbasic programs. At some point i got ahold of a p133, and i beleived i smashed the ibm machines on the driveway.