The use of the computer as a sound generator is omnipresent in current music production and ranges from music notation programs playing back samples via MIDI control to specially programmed sound synthesis programs. The term ‚computer‘ is generally understood as a complete set of hardware and software. But a closer look at this complete set is definitely worthwhile and poses some systematical challenges. In the early days of digital sound synthesis in real time, the hardware is strongly connected to the resulting sound. The control was done by means of a programming language or a specially designed software, which offered more or less possibilities of intervention, depending on the stage of development. But do these sound generators actuall...