TAT Text attribute table for an annotation subclass in a coverage. In addition to user-defined attributes, the TAT contains a sequence number and text feature identifier. See also feature attribute table . These are low-level communication protocols which allow computers to send and receive data. A coverage containing common feature boundaries, such as land-water boundaries, for use as a starting place in automating other coverages.
Templates save time and increase the precision of topological overlays .
A map template containing neatlines, North arrow, logos, and other cartographic map elements for a common map series. An empty tabular data file containing only item definitions. Terabyte, TB A measure of data size. A terabyte of data is equivalent to 1,000 gigabytes of data or 1,000,000 megabytes of data. One petabyte equals 1,000 terabytes.