Some important concepts in serial data communications may be demonstrated “live” in the lectureroom using a PC equipped with videoprojector, analog input board, and pickup circuitry. The apparatus displays the wave-shape of the serial signal, along with characters sent or received. It has proven useful for “seeing” the signal and for… (More)
A method is described for managing stand-alone hard-disk PCs, in an environment in which students are allowed to explore the hard disk. The system, application, and student-created files are safeguarded by management software which helps eliminate "accidental" loss or modification.