What is a computer on modules? Computer on modules is more or less a stripped complete computers built on a single circuit board. The components on the board are the core components like the CPU (ARM and X86) and chipset with RAM. Any input/output peripherals and additional application specific functionality are placed on a carrier board, on which the computer on module is mounted. Hectronic supplies computer on modules in many different form factors like Com Express, SMARC and Qseven, both as standard products and custom solutions.