UNIX time-sharing system: Microcomputer control of apparatus, machinery, and experiments

Microcomputers, operating as satellite processors in a UNIX∗ system, are at work in our laboratory collecting data, controlling apparatus and machinery, and analyzing results. The system combines the benefits of low-cost hardware and sophisticated UNIX software. Software tools have been developed that accomplish timing and synchronization; data acquisition, storage, and archiving; command signal generation; and on-line interaction with the operator. Mechanical testing, magnetic measurements, and collecting and analyzing data from low-temperature convective studies are now routine. The system configurations used and the benefits derived are discussed.