S-100 Boards For Sale
There is now a growing network of S-100 bus computer collectors. If you have a newly designed S100 bus board for sale please let me know I will add it to a list on this page (see below) for free. Please include a description of the board, asking price, phone number if required and  an e-mail address.

S100Computers  Boards Status and Order List
As you can see in other sections of this site  I and a handful of others continue to make custom S-100 boards for our own use.  A lot of work goes into designing and manufacturing these boards. Typically they start off as a point to point wire (or wire wrapped) soldered prototype board. Then a long process at arriving at an efficient schematic is carried out.  A first prototype board is then manufactured. The process may have to be repeated before a final commercial quality board is made. 

Realizing a number of others may want to use these boards we typically open the final "commercial" board to others that may wish to obtain them. These are high commercial quality but bare S-100 boards. You have to add your own IC sockets chips etc. A schematic and assembly instructions is provided for each board however on this web site.   For more information about ordering S100Computers boards please see here. Please remember however this is NOT a commercial venture.

Here is a brief description of all our current S100 bus boards:-

S-100 Buffered Prototype Board
This is a fairly old S-100 Prototype Board that is designed to help take away the initial drudgery of building S-100 prototype boards.  We have laid out the board so all the address and data lines are buffered through 74LS245's or 74LS244's. Most of the common S-100 bus control and status signals are also buffered.  So the user can right away get down to building useful circuits without the bus connection/IC overhead.  Also the board is arranged so a daughter piggyback (no S-100) board can be attached via a series of connectors. This way you can have cheap simple test boards made before you "burn" your own real (more expensive) S-100 board.  If you have a real interest in a board(s) let us know.  Note these are bare boards. You add chips and other components yourself. There is a wait list for additional boards if and when demand warrants. 
     



A second improved version of this board has been made.
See here for more information. Here is a picture of that board:-
     
 



 
Basic S-100 Prototype Board
This a basic S-100 prototyping board (no buffers etc.) has a 9"x4.5" area of PTH for wire wrap or point to point wiring of prototypes.  All pins are exported and includes circuitry for three voltage regulators, +5V, +12V, and -12V.  The SCRs are optional and can be modified by the builder as desired.  The S-100 prototyping boards are $25 each plus $3 shipping in the US.  These S-100 prototype board PCBs are currently all sold and in the hands of builders being tested and used.  
 
 
 

S-100 Motherboard
The S-100 backplane is an 8 slot active terminated motherboard for building and/or repairing small S-100 systems.  It is primarily intended for bench-top work to repair and/or build boards without risking a valuable legacy S-100 chassis. 
     
Please see here for more information about this board.

S-100 IDE Board
I completed a third edition of this S-100 IDE Board that is designed to interface the S-100 bus with two IDE drives and/or Compact Flash memory boards.  The third batch of boards have been used up by S-100 users. There is a wait list for additional boards if and when demand warrants. Please see here for more information about this board.
   

 
 
S-100 PC Keyboard Adaptor  Board
This board allows you to utilize a standard modern day PC keyboard as an ASCII keyboard for S-100 bus systems.  A second batch of boards have been used up by S-100 users. There is a wait list for additional boards if and when demand warrants.
Please see here for more information about this board.
    




4 MB S-100 Static RAM  Board
This is a 4 MB S-100 Static RAM Board that is designed to allow you to utilize any speed CPU (8 or 16 bit) in the S100 bus up to its maximum capacity of 16 MB. A batch of boards have been already been used up by S-100 users. There is a wait list for additional boards if and when demand warrants. 
Please see here for more information about this board.





S-100 System Monitor Board
This is an S-100 Board that allows you to review important S-100 bus signals and control the Master CPU running the bus.
Information about this board can be seen here.


The board comes as a main S-100 board and one of three different types of display boards.
You cut and add the type of display board you need.



S-100 Bus Extender  Board
This board allows you extend the S-100 Bus up above other boards in the bus so you can review and debug a board. 
This is an essential board for any kind of serious hardware debugging.   
Please see here for more information about this board.





S-100 Bus EPROM/RAM Board
This board allows you to utilize a wide verity or EPROMS, EEPROMS, Static RAM or Flash RAM chips in an S-100 system.
Please see here for more information about this board.




S-100 Serial-IO  Board
This board allows you to utilize a Zilog Z8530 SCC Dual Serial Port Chip,
A Speech Synthesizer and USB Port in an S-100 system.
Please see here for more information about this board.



S-100 PIC/RTC  Board
This board allows you to put a MM58167A Real Time Clock chip and an 8 and 16 bit Priority Interrupt controller (an Intel 8259A) on the S-100 Bus.
Please see here for more information about this board.


  


S-100 Z80 Master CPU  Board
This board allows you to put a Z80 CPU on the bus as an S-100 Bus Master. 
In an active terminated S-100 bus the board is capable of reaching speeds of 10MHz.
Please see here for more information about this board.
 

 


ZFDC Controller  Board
This board is a general purpose Z80 CPU driven Floppy disk controller board for 8"and 5" floppy disk drives.
Please see here  for more information about this board.
 


 

Propeller Driven Console-IO  Board
This board is a general purpose S-100 Console-IO board Z80 CPU. 
It utilizes a standard IBM-PC keyboard as input and outputs data to any VGA compatible display. 
Please see here for more information about this board.
    
    

    
 
S-100 8086 Master CPU  Board
This board is a general purpose S-100 8086 CPU Board. 
It is utilizes with other boards on the S-100 Bus to run CPM86+ or Microsoft 's MS-DOS.
Please see here for more information about this board.
 

  


S-100 6502 (IMSAI/Altair Style) CPU  Board
This board is a general purpose S-100 6502 CPU Board. 
It is built to be used with early IMSAI/Altair style S-100 Systems.
Please see here for more information about this board.
   




S-100 MS-DOS Support  Board
This board is a general purpose hardware support board  that helps make an S-100 system hardware
compatible with and IBM-PC to run MS-DOS. 
Please see here for more information about this board.
 



S-100 Lava-10 Video  Board
This board is a general purpose S-100 bus Video Board capable of VGA resolution. 
It can be used with other boards on the S-100 Bus to run Microsoft 's MS-DOS (or Digital Research CPM) for video output.
Please see here for more information about this board.
    

     

S-100 8088 Master CPU  Board
This board is the 8 bit equivalent of our 8086 CPU board (see above). 
It can be utilizes with other boards on the S-100 Bus to run CPM86+ or Microsoft 's MS-DOS.
Please see here for more information about this board.
   

  

S-100 68000 Master/Slave CPU  Board
This board is driven by the Motorola 68000 (or 68010) CPU,  a 16 bit CPU board. 
It can be configured as a bus master or slave.
Please see here for more information about this board.
   

 
S-100 Bus Terminator Board
This board can be used to improve S-100 bus signals that do not have bus termination on the motherboard.
The remainder of the board can be used for general purposes prototyping. 
Please see here for more information about this board.
   


S-100 6502 Master/Slave CPU Board
This board is driven by a Mostek 6502 CPU,  an 8 bit CPU board. 
It can be configured as a bus master or slave.
Please see here for more information about this board.
   

   
   
S-100 Parallel Ports IO Board
This board is a general purpose board for S-100 bus parallel IO ports.
 It also has an IBM  PC-printer compatible parallel port.
Please see here for more information about this board.
       

    
  
S-100 80286 Master/Slave CPU Board
This board is a general purpose S-100 80286 CPU Board. 
It is utilizes with other boards on the S-100 Bus to run CPM86+ or Microsoft 's MS-DOS.
Please see here for more information about this board.
        



S-100 RAM+ROM Board
This board is a general purpose S-100 RAM and ROM Board.  It is utilizes a wide range of Static or Flash  RAM and EEPROM chips.
Please see here for more information about this board.


 

S-100 16 MB Static RAM Board
This board is a general purpose S-100 RAM Board.  It is utilizes a 4M X 8 SMD RAM chips.
Please see here for more information about this board.
  


S-100 80386 Master/Slave CPU Board
This board is a general purpose Master/Slave 80386 CPU Board.  It is a first for the S100 bus!
Please see here for more information about this board.
    

S-100 8 MB Daughter Static RAM Board for 80386 CPU board
This is a special purpose S-100 RAM Board that connects directly to the above 80386 CPU board.
Please see here for more information about this board.
    

S-100 32 MB Daughter Static RAM Board for 80386 CPU board
This is a special purpose S-100 RAM Board that connects directly to the above 80386 CPU board.
Please see here for more information about this board.
    

S-100 bus VDP Video Board
This is a MSX compatible video board.
Please see here for more information about this board.
    

S-100 bus 16 MB Static RAM Board V3
This is a 16 MB Static RAM board using SMD RAM chips.
Please see here for more information about this board.
      

PC-ISA bus to S100 Bus converter board
This board allows the testing of IBM PC-ISA bus boards in an S100 bus system.
Please see here for more information about this board.
    
 
An S100 bus VGA video board
This board allows IBM-PC video graphics to be run with our S100 bus 8088 CPU board.
Please see here for more information about this board.
  
    
  
A V3 version of our System Monitor Board
This is an updated version of our popular SMB. It has a few new bells and whistles as well
Please see here for more information about this board.
  
    

Z80 Single Board Computer (SBC) Board
This board is a general purpose Z80 CPU board for beginners to get their system up and running.
Please see here for more information about this board.
  

S100 Bus 64MB Static RAM Board
This is a specialized 32/64 MB Static RAM board for our 80386 and 80486 CPU Boards.
Please see here for more information about this board.
    

V2 80386 CPU Board
This is a CPLD based 80386 CPU Board.
Please see here for more information about this board.
    
V6 16MB Static RAM  Board
This is a new GAL based version of the earlier 16 MB RAM boards
Please see here for more information about this board.
    

Baby 80486 CPU Board
This is a CPLD based 80486 CPU Board.
Please see here for more information about this board.
    

Full Size 80486 CPU Board
This is another CPLD based 80486 CPU Board.
Please see here for more information about this board.  This is a four layer board.
    

V3 OTT 32/64 MB Static RAM Board.
This is another OTT RAM board for the 80386 and 80486 CPU Boards. This is a four layer board.
Please see here for more information about this board.
    

16 Bit Trident VGA Board
This is a CPLD based 80486 CPU Board.
Please see here for more information about this board.
    

Dazzler II Video Board
This is another CPLD based 80486 CPU Board.
Please see here for more information about this board.
       

V3 8MB OTT Static RAM Board
This is another OTT RAM board for our 80386 & 80486 CPU Boards.  This is a 4 layer board.
Please see here for more information about this board.
    

Edison CPU Board
This board puts the Edison CPU on the S100 Bus.
Please see here for more information about this board.
    

Edison II CPU Board
This more elaborate board also puts the Edison CPU on the S100 Bus.
Please see here for more information about this board.
    

S100 Bus Display Board
This is a diagnostic  board for the S100 Bus.
Please see here for more information about this board.   
  

PDP11 CPU Board
This very exciting board puts the Digital PDP J11 CPU on the S100 Bus.
Please see here for more information about this board.
    
68030  CPU Board
This board puts the Motorola 68030 CPU on the S100 Bus.
Please see here for more information about this board.     
V2 PDP11 CPU Board
This board puts the PDP11 CPU on the S100 Bus.
Please see here for more information about this board.     

V2 PDP11 CPU Support Board
This is a Support Board for the V2 PDP11 CPU Board
Please see here for more information about this board.     

Arduino S100 Board
This is a CPU Board for Arduino Shields
Please see here for more information about this board.    
     

FPGA S100 Board
This is an FPGA Prototype Board using a Cyclone IV FPGA
Please see here for more information about this board.    
     

V2 FPGA S100 Board
This is an another FPGA Prototype Board using a Cyclone IV FPGA
Please see here for more information about this board.    
     

FPGA Z80 SBC Board
This is an FPGA Prototype Board using a Cyclone IV FPGA
Please see  here for more information about this board.    
     


FPGA 80286 SBC Board
This is an FPGA Prototype Board using a Cyclone IV FPGA
Please see here for more information about this board.  
         
Serial IO Board V4.2
This is an update of the origional Serial IO board
Please see here for more information about this board.  
         

FPGA based  CF Card, SD Cards and FDC Board
These are boards of increasing complexity of Disk Controller Boards
Please see here for more information about this board.  
           


Dual IDE/CF Card Board V4
This is an update of the Dual IDE/CF Card Board.
Please see here for more information about this board.  
  
         


AMD 9511 Math Board
This is a board for complex math processing using the AMD 9511 math chip.
Please see here for more information about this board.  
         

IO/Sound board.
This is a general purpose IO/Sound board.
Please see here for more information about this board.  
         

Raspberry Pi Zero Board
This is a Raspberry Pi Zero driven slave CPU Board.
Please see here for more information about this board.  
         

IO/Sound board without an FPGA
This is a general purpose IO/Sound board without an FPGA.
Please see here for more information about this board.  
         

16 MB RAM + ROM  Board.
This is a general purpose 1 or 16 MB RAM + ROM  Board.
Please see here for more information about this board.  
         

Z180 SBC  Board.
This is a "beginner board" for people to start using the S100 Bus.
Please see here for more information about this board.  
           

3P+2S IO Board.
This is a "beginner board" for people to start using the S100 Bus.
Please see here for more information about this board.  
         
FPGA 80486 SBC Board.
This is a complex board not suitable for beginners.
Please see here for more information about this board.  
         


\
Future Boards...
We have a growing list of S-100 boards planned. 



S-100 BOARDS FOR SALE BY OTHER S-100 USERS
If you would like to advertise (for free) any new S-100 boards you have designed.  Pease let me know.

Another S-100 Buffered Prototype Board
Josh Bensadon has made another new S-100 Prototype Board that is somewhat like the one described above.
However this one cuts the number of basic support chips to a minimum thereby giving you more real estate on the board to work with.
Please see here  for more information about this board.
     

 

An S-100 8080A CPU Board
Josh Bensadon of Toronto Canada (aka Crusty OMO) has designed and fabricated an excellent 8080 CPU board with many extra capabilities.  
If you have specific questions or comments about the board and its related software you can  contact him directly at crustyomo [AT] hotmail.com. 
Please see here  for more information about this board.
      


An Front Panel Control  Board
Don Caprio has designed and fabricated an excellent front panel board with many extra capabilities.  
If you have specific questions or comments about the board and its related software you can contact him directly at  ilvunix [AT] gmail.com. 
Please see here  for more information about this board.
     


MEM8Plus  Board
Bob Bell  of BCSTech LLC  has designed and fabricated a front panel board with some excellent extra capabilities.   If you have specific questions or comments about the board and its related software,  please contact him directly.  Bob is a regular contributor to the Google Groups S10Computers forum.
Please see here  for more information about this board.
     

An Front Panel Control  Board
David Fry  in the UK  has designed and fabricated an excellent Games, Sound and Serial board.   If you have specific questions or comments about the board and its related software,  please contact him directly.  Bob is a regular contributor to the Google Groups S10Computers forum.
Please see here  for more information about this board.
        
SERCOM  Board
Bob Bell  of BCSTech LLC  has designed and fabricated this Serial I/O Board. The board has many features.   If you have specific questions or comments about the board and its related software,  please contact him directly.  Bob is a regular contributor to the Google Groups S10Computers forum.
Please see here  for more information about this board.
    

This page was last modified on 12/13/2023