Computer-on-module
Hard Drive Recovery - Computer-on-module
Computer-on-module (COM) is a type of single-board computer, a subtype of an embedded computer system.
It is also known as System on Module (SOM), an extension of the concept of System on Chip (SoC), and lying between a full-up computer and a microcontroller in nature.
The terms Computer-on-Module and COM were coined by Venture Development Corporation to describe this class of embedded computer boards. The term became more well known following the industry standardization of the COM Express format.
A number of manufacturers offer products which are defined as system-on-module or computer-on-module. Manufacturers include Advanced Knowledge Associates in Santa Clara, CA; BCM Advanced Research in Irvine, CA; Embedded Systems; MEN Micro in Ambler, PA; DAVE Embedded Systems in Italy.
COM/SOM modules are complete computers built on a single circuit board. The design is centered on a single microprocessor with RAM, input/output controllers and all other features needed to be a functional computer on the one board.
Unlike a single-board computer, the COM module usually lacks the standard connectors for any input/output peripherals to be attached directly to the board. Instead, the wiring for these peripherals is bussed out to connectors on the board.
The module will need to be mounted on a carrier board which breaks the bus out to standard peripheral connectors. Some COMs also include peripheral connectors and/or can be used without a carrier.
A COM/SOM solution offers a dense package computer system for use in small or specialized applications requiring low power consumption or small physical size as is needed in embedded systems. Some devices also incorporate Field Programmable Gate Arrays.
