In some embodiments, an electronic and digital building block system includes modular electronic building modules that can be electrically coupled together to create various different electronic devices. In addition to physical electronic modules, the system can include digital building blocks to further enhance and integrate the functions of an assembled bit-system that can be created/assembled by a user of the block electronic building system. The digital building blocks are not a physical module, but digital content or other software or cloud applications that can be represented as virtual digital blocks, and that can interface with the physical modules. The digital blocks can provide integration between the functionality of the physical building blocks and functionality of computer-based and/or web-based applications, programs and systems. The electronic and digital building block system can include a system program and a visualizer that can be viewed on the display of a computer device.