Intersystems Incorporated, Ithaca New York, DPS-1, S/N MFD-0674
The chassis has a IA-1160 "blinky light: front panel, a Thinker Toys Wunderbuss motherboard with active terminator, an IA-2000 REV-A Z-80 CPU board, an IA-2030 REV-B 64k DRAM Memory board, an IA-2020 Diskette Controller board, and an IA-1190 Serial/Parallel Interface board. The DPS-1 system came with a Lobo Drives 8" SSSD floppy diskette chassis, a Zenith H-19 terminal S/N 423972, a DEC VT-52-NE, and a TI-810 printer.
With a little bit of fiddling we were able to get the system to boot.
Click on the image for a larger view.
The front of the Ithaca Intersystems DPS-1.