The system would work by having the DN-30 run the terminals and save the work to the disk. When the user typed codice_1, the GE-225 would read that file, compile it, run it, and pass back the results to be printed on the terminal. This combination of machines was later known as the GE-265, adding their model numbers. GE built about fifty additional examples of the GE-265, many for their service bureau business. GE referred to these as their Mark I time-sharing systems.