(OPS) A system for discrete simulation under CTSS developed by M. Greenberger at MIT ca. 1964.
[Sammet 1969, p.660. Versions: OPS-3, OPS-4. “On- line Computation and Simulation: The OPS-3 System”, M. Greenberger et al, MIT Press 1965].
/ɒnˈlaɪnə/ noun 1. a person who uses the internet regularly
- Online public access catalog
library (OPAC) A computerised system to catalogue and organise materials in a library (the kind that contains books). OPACs have replaced card-based catalogues in many libraries. An OPAC is available to library users (public access). (2000-07-17)
- Online service
noun See online service provider
- Online service provider
noun an entity which provides a service online, esp. any business that provides its subscribers with a wide variety of data transmitted over telecommunications lines; also called online service