The Poly-88 computer was introduced in 1976. Originally named the "Micro-Altair," the name was changed to "Poly-88" after objections from MITS (the manufacturer of the Altair 8800). The Poly-88 is very compact using a five slot S-100 bus with the option of attaching side connectors to join adjacent cabinets together. The Poly-88 was available in kit form or assembled. The keyboard and monitor were sold separately and you provided your own cassette recorder for program storage.
The Poly-88 system pictured below is one from my collection. The Poly CPU board is visible in the internal side view picture. The PROM on the far right is the 1K Poly Monitor that provides drivers for the screen, keyboard, and loading programs from cassette. The Poly monitor also provides a front panel mode that allows viewing and changing memory locations, jumping to an address for execution, and breakpoints for debugging.
Two PolyMorphic S-100 boards are in this computer: The CPU board and the video terminal interface board. The middle board shown in these pictures is a 64K static RAM board of newer vintage than the Poly-88. Detailed pictures of the CPU and video boards can be seen in the Poly 8813
section further below.
For more information about PolyMorphic computers, click to see the archive of Bob Bybee's PolyMorphic website