edu.ucar.opensky::technotes:144 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T16:51:56.092581 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d72z14xj Parcels With TAGS 1992-01-01T00:00:00Z publication https://n2t.org/ark:/85065/d72z14xj https://doi.org/10.5065/D6DN432V Sloan, J. author UCAR/NCAR - Library publisher The NCAR Text And Graphics System is a graphics and text batch output production facility. It is distributed across several networked computers which run the UNIX operating system. The control function of TAGS is implemented as multiple processes which communicate via message passing. The TAGS message passing scheme allows processes to exchange a simple form of associative memory, called a parcel, in an architecture neutral fashion. The associative memory is implemented as a binary tree containing pairs of keyword and value strings ordered by collating sequence. The underlying interprocess communication mechanism is based on Berkeley internet stream sockets. This message passing scheme provides information hiding inside the message, and allows new parameters to be added to messages without recompiling or relinking intermediate modules which handle the messages. The software as described is available from NCAR via anonymous FTP at no cost under a noncommercial license. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Data visualization theme U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2021-09-17 revision 11.2 NASA Global Change Master Directory originator Valids List: Science and Services Keywords Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation