Progit are self contained Computer Programs modules about the size of a 6cm cube. They can use a smaller energy source, but typically plug into a belt pack energy supply or larger to gain a bonus (typically +1) to their processing capability. Connecting them to a full computer or specialized hardware allows them to use AI and enhanced processing for added bonuses (typically another +1).
Every computer can have a number of progit ports. All progits contain at least 1 (up to 4) interface ports to connect hardware they might control to, and a small display for basic status readouts.
The basics of a Progit are self contained, and they typically cannot be modified using the Computer Systems skill.