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CompuPro - SPUZ Board
The company was known as Viasyn at this time (1985), even though the manual said CompuPro.

Visan SPUZ

The SPUZ shows how far the S-100 bus had evolved. This board probably represents the apex of perfection of S-100 8 bit CPU boards.
The board combined an 8 MHz Z80H, 64K or 256K of memory and two fully bi-directional RS-232C serial I/O channels to perform a number of "slave processing" tasks.  Because each user had their own processor, memory and serial ports, the overhead on the host system was reduced when the slave was running an 8-bit task. When running 16- or 32-bit programs, the SPUZ could be used as a front end I/O processor adding 8-bit processing capability to the system (as with CompuPro 816/D1, El, Fl, G1 and 286 computers). Up to 16 SPUZs could be resident in the same mainframe.

In systems where high system throughput was necessary, this multi­processing configuration, in which host and slaves may run 8- and 16-bit software simultaneously, it was faster and more efficient than dual processing systems where one of the processors was stopped while the other is running.

The SPUZ met all IEEE 696/S-100 bus specifications and included the following features:
-      Fast 8MHz Z80H for high throughput.
-      64K or 256K bytes of RAM. Up to 16   SPUZ boards occupy only 64K of system memory.
-      Dual bi-directional RS-232C serial ports.
-      Fully software selectable serial port parameters.
-      Supported by CompuPro Concurrent DOS 8-16 multi-user, multi-tasking operating system.
-      True multi-processing instead of dual processing.
-      Ideal as an 8-bit node in a "processor-per-user" system.
-      Adds 8-bit capability to 16- or 32-bit systems.
The manual for this excellent board can be found here


Other CompuPro S-100 Boards
CPU8085-88  CPU86-87  CPU-Z  Disk1  Disk1A  Disk1B  Disk2  Disk3   EconoROM2708  Interfacer 1  
RAM Boards   Interfacer 3  Interfacer 4  Interfacer II   M-Drive  MPX-Board  PC-Video  
System-Support1  System-Support2   SPIO  Spectrum  SP186   CPU-286
   68000  32016  SPUZ


This page was last modified on 10/25/2013