In one example in accordance with the present disclosure, a modular computing component is described. The modular computing component includes a first terminal to connect the modular computing component to at least one of a host computing device and another modular computing component. Controller memory of the modular computing component stores information relating to at least one of build level information, revision level information, and generation level information. A controller of the modular computing component transmits the at least one of build level information, revision level information, and generation level information to the host computing device.