A modular computer system includes at least one information processing module removably received at a first face of a housing, at least one computer support module removably received at a second face of the housing, at least one power supply module removably received at the second face of the housing, and a connections member. The connections member includes at least one connector at a first face of the member arranged to connect to a connector of the at least one information processing module. The connections member further includes at least one connector at a second face of the member arranged to connect to a connector of the at least one computer support module. The connections member also includes at least one connector at the second face of the member arranged to connect to a connector of the at least one power supply module.