Reviews diverse types of computer programing languages and provides examples of representative programs from the most significant languages in use. Matches programing languages most suitable for various types of experimental applications for the amateur scientist. (JJK)

Described is a simple electronic interface that can receive signals from up to four analog sensors and four event detectors and save the data on disk. Schematic diagrams, construction details, sample temperature plot and weather station logging programs, and a parts list are included. (KR)