Pre-Programmed Course Automatic programming that changes resistance at preset intervals.

This is determined by the user entering a password at preset intervals.

They would explode at preset intervals or if disturbed, and were capable of disabling bulldozers or other earth-moving machines.

A blood pressure machine takes blood pressure readings at regular, preset intervals throughout the surgery.

A pitch shifter is a sound effects unit that raises or lowers the pitch of an audio signal by a preset interval.

If no voice is heard for a preset interval, the system disconnects.

The device stimulates the vagus nerve at preset intervals and intensities of current.

The harmonizer generate up to 5 additional "voices" at preset intervals, which allowed Crook to play chordal lines using an otherwise multiphonic instrument.

Saves the current set of open windows and tabs (and associated history), at a preset interval and/or on command.

In this case, the software, either each time it is used or at some preset interval such as monthly, makes another connection back to the registration server.