From its inception in the 1930s until very recent times, the cumulative recorder was the most widely used measurement instrument in the experimental analysis of behavior. It was an essential instrument in the discovery and analysis of schedules of reinforcement, providing the first real-time analysis of operant response rates and patterns. This review traces the evolution of the cumulative reco...

The operation of nine – channel microprocessor controlled recorder to be used for concurrent recording of current – voltage characteristics in two or three electrode configurations has been described in the present study. The prototype version of the recorder as been designed for measurements associated with determination of oxygen stream density in the course of soil oxygen micro-diffusion. Th...

Flight Data Recorders (Black Boxes) generate data that is collected on an embedded memory device. A well-known difficulty with these devices is that the embedded memory device runs out of space. The worry of getting into this problematical situation compels the software of the flight data recorder to operate in a watchful mode it constantly makes efforts to minimize the use of memory space; oth...