TOS Commands

The messages or signals (e.g., play signal, rewind signal) that trigger the TOS tasks or TOS readings can vary from a simple impulse (electrical, optical, mechanical etc.,) to activate a motor, to a specialized command (e.g., START MOTOR1) to trigger that motor. This work assumes that (i) specialized commands can substitute other types of signals and (ii) conversion from a specialized command to other signals is possible with appropriate hardware and software. Therefore, the term TOS commands shall refer to only these specialized commands. TOS commands can be thought of as a function that associates domain objects to TOS tasks or TOS readings. The term command name denotes the name associated with a particular command.