Embedded Computers Allied Data Systems

Embedded Computers * Military and Avionic Data Bus Interfaces * Industrial Interfaces * PC/104

The above links will take you directly to our suppliers web sites where you can find out more detailed and product specific information.

PC/104, PC/104 plus, PCI/104 and PCIe/104

The initial release of the PC/104 specification in March of 1992 was an open design offering the power and flexibility of an IBM compatible personal computer in a size ideally suited for embedding. Simple and elegant in design, small but rugged in performance, PC/104 technology bridged the success's of the past with the promises of future innovations.

The ISA bus of the original IBM PC as established by the IEEE P996 specification is still fully supported today by PC/104 technology over two decades after it was created.

When demand for a faster, higher bandwidth bus emerged, the PC/104 Consortium once again followed the desktop PC by adding a PCI bus to the ISA bus. PC/104-Plus was introduced in February of 1997. By keeping the ISA bus and adding the PCI bus, this specification became an addition to the technology... not a replacement of any existing technology.

When desktop PCs stopped having the ISA bus, the PC/104 Consortium was ready with PCI-104. The concept of PCI with no ISA was introduced in the original PC/104-Plus specification, but formally recognized with its own specification in November 2003. Once again, the PC/104 Consortium followed the desktop PC, while keeping the legacy specifications intact.

This growth pattern underscores the PC/104 Consortium's desire to support the legacy technology while developing new solutions for the future. Longevity is a requirement for embedded systems and one of the hallmarks of the PC/104 Technology... proven again by the number of PC/104, PC/104-Plus, and PCI-104 products on the marketplace as well as the number of PC/104 sites on other form factor boards.

Our Products

We not only supply PC/104 hardware from 3 of the premier Embedded suppliers but we also develop our own. In fact DDC's PC/104 synchro boards are designed and manufacture by Allied.


All our CPU boards are supplied by RTD Embedded Technologies. RTD provide the widest range of PC/104 CPU's available from any manufacturer.

I/O Cards

DDC, RTD and Sealevel provide our PC/104 series I/O cards. Sealevel cards are asynch and sync serial cards, DDC provides Mil-STD-1553 and synchro boards and RTD provides just about everything else you could possible want.

Rugged cases and conductive cooling

There have been a number of case design attempts for PC/104 hardware but none other than the RTD IDAN series comes anywhere close to matching the requirements for ruggedization and heat dissipation. In fact some supposed rugged designs are out right dangerous to the hardware as they require large amounts of pressure to squeeze the stack inside the container. Often holes are required to pass air through for cooling and fans are mounted inside. OK so you want a rugged computer...then why use a fan ? It is a single point of failure !

The IDAN series uses conductive cooling of the components with the use of heat pipes which makes this technology match the technology of the CPU that you want to use. It is really the only solution that provides a truly ruggedized system. The other stuff is quite frankly just a compromise or junk that will only let you down in the end.