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P > POLYMORPHIC  > POLY 88   


Polymorphic
POLY 88

The POLY 88 was a S-100 bus based computer sold in kit or assembled versions. The small case could receive the 8080 CPU board and three additional S-100 cards. Daughter boards were provided by Polymorphic to expand system capacities: video, keyboard, serial and cassette interfaces.

The system was also compatible with Altair peripherals. Originally, the computer was sold with the name "Micro-Altair", but MITS (the Altair manufacturer) required to change it quickly. So the company name became Polymorphic and its first computer, the POLY 88.

In 1976, five versions were proposed:
System 1 Kit version including 512 bytes RAM, 1 Kb. ROM monitor, 16 lines x 32 chars. video interface, keyboard input port and power supply. ($595)
System 2 System 1 plus 64 chars. per line option and cassette interface kit. ($690)
System 3 System 2 plus 8 Kb. of RAM, Basic and Assembler programs on cassette tape. ($990)
System 4 Complete kit including System 3 plus TV monitor, keyboard and cassette recorder ($1350)
System 7 System 4 assembled and ready to use. ($1350)

Thanks to Leon H. Schindel for his invaluable help



We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.

 

Marvin, I obtained a large collection of Poly-8813’s and 8810’s about a year ago along with a few hundred diskettes. I fully restored one of the 8813’s and it is running great under System-88 (Exec). However, I really wanted to find and restore an 8813 with the Polymorphic mods for CP/M. This summer I found one of these board sets (CPU, VTI and RAM board) and have recently finished restoring them to operating condition. I had to create a version of CP/M for the 8813 from scratch since none of the few hundred disks I have are Poly CP/M disks. Please look through your disks and let me know if any of them have CP/M related files on them. I have written utilities for archiving and writing disks to/from a PC over a serial port connection to the Poly 8813.

          
Saturday 9th November 2019
Mike Douglas
DeRamp

I probably have the worlds largest collection of remaining Polymorphic drawings, boards, etc. While I am not very quick on responding... too much stuff :)..., I may be able to help with information. My collection includes four or five Poly 88s, a Poly 8810, Poly 8813, and maybe around 200 spare boards in various stages from partially built to complete and tested plus two filing cabinets full of Poly documentation. My next project will be to start archiving all the software. I probably have several thousand Poly disks, both 5 1/4" and 8", so this will take a while!

          
Tuesday 20th August 2019
Marvin Johnston (California USA)

In the late 70''s I paid almost four grand for this system, with a walnut cabinet for the floppy drive, processor! It was stolen from my Santa Barbara home, within two weeks...

          
Thursday 12th September 2013
Edward W. Jackson  (Missouri, USA)

 

NAME  POLY 88
MANUFACTURER  Polymorphic
TYPE  Professional Computer
ORIGIN  U.S.A.
YEAR  1976
BUILT IN LANGUAGE  None
KEYBOARD  Full-stroke 54 keys (made by Cherry)
CPU  8080A
SPEED  2 MHz 8080A, running at 1.8432 MHz (so that it could be easily divided to produce standard baud rate clocks)
RAM  512 bytes to 32 KB.
VRAM  1 KB
ROM  Monitor 1 KB (2 KB optional)
TEXT MODES  40 chars x 25 lines
GRAPHIC MODES  Semi-graphic mode (128 x 48)
COLORS  Monochrome
SOUND  None standard (available through S100 boards)
SIZE / WEIGHT  11(W) x 17.5(H) x 43 (D) cm.
I/O PORTS  Keyboard, tape recorder, printer, video vomposite
BUILT IN MEDIA  None
POWER SUPPLY  Built-in PSU
PERIPHERALS  Video, keyboard, cassette, serial interfaces.
Some Altair S-100 cards
PRICE  From $595 to $1350




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