petabyteA measure of data size. One petabyte is equivalent to 1,000 terabytes. pitA point around which all slopes are positive (i.e., upward).
One petabyte equals 1,000 terabytes. Computer unit, 1012 bytes. terminal A device, usually a display monitor and a keyboard, used to communicate with the computer.
In the 1990s, GIS data servers seldom required a database that was more than 25 to 50 gigabytes in size. Today it is common for organizations to operate geodatabase servers supporting several terabytes to petabytes of GIS data (one petabyte is equal ...
This also permitted a highly efficient compression of the resulting data, suitable for the petabyte-size data repositories that CHS and other major corporate users required, and also improving search and retrieval times.
See also: GIS, Information, Metadata, Network, Spatial Data
 
|