A gaming, betting and/or entertainment machine, in particular a coin-and/or cash-operable gaming or betting machine, has a housing, a data processing unit accommodated in the housing, at least one display device for displaying game and/or entertainment signals, and an operating device for machine operation, which is disposed on the housing. The housing has a modular structure and a plurality of modules to be attached to each other, which each are preassembled with the electronic components attached thereto. A first housing module, which carries the data processing unit and possibly the operating means, includes a first connection interface, by which a respective second housing module, which carries the respective display device, can selectively be attached to the first housing module. The data processing unit in the first housing module advantageously has a detection device for self-detection of the respectively connected electronic components in or on the respectively attached further housing modules. This provides for a plug-and-play configuration of the machine.