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Vector Graphic 12K PROM/RAM Board
This board held the monitor software with such routines as system boot and printer drivers.


Vector Graphic's PROM RAM III Board was a versatile, S-100 bus compatible, memory board combining EPROM's with a small amount of RAM. Of unique thing about the board was that you could use the board to actually program a 2708 EPROM on the board itself. 1K of RAM (2114's) was also provided on the board. The board could be address as two separate 8K blocks of memory. There was also POC/Reset circuitry to cause the Z80 to jump to the first memory location of one of these blocks.
The manual for the board can be obtained here


Other Vector Graphic  S-100 Boards
Dual FD-HD Controller    FlashWriter-II    Bitstreamer-II   48K-RAM    64K-RAM   8080-Board  
8K-RAM   EPROM  FDC   Micropolis-FDC    Z80-Board    SBC


This page was last modified on 10/25/2013