GPS (Global Positioning System)
Definition: A Global Positioning System is a satellite-based radio navigation system run by the U.S. Department of Defense. What This Means: Signals from at least four satellites on the horizon at all times are sufficient to compute the current latitude, longitude, and ...
Growth Model
Definition: A growth model measures change in student academic performance rather than status What This Means: When NCLB mandated a status standard for AYP and described only quasi-longitudinal growth as an alternate indicator, failing schools that seemed to be improving but not ...
GUI
Definition: Graphical user interface. The most commonly used computer interface, exemplified by Microsoft Windows and MacOS. Typical elements of a GUI are a mouse interface and a file system organized to look like a set of folders. Need another definition?
GUID (Globally Unique Identifier)
Definition:Globally Unique Identifier, a 32-character identifier unique across space and time. Frequently used to uniquely identify each instance of a data object (RefId), resulting in a mechanism for uniquely mapping a specific person, school, etc. in one application with the ...
Hard Drive
Definition: The main device a computer uses to permanently store and retrieve information. These drives are typically sealed boxes found inside the computer. Also called a "hard disk. " Need another definition?
HDTV
Definition: High-definition television. A format for TV broadcasts that allows for a higher-quality picture. Need another definition?
Home Page
Definition: The main page of a Web site that provides links to other pages on the site or related sites, or the page one’s browser opens up to by default. Need another definition?
Honeypot
Definition: A computer system that is connected to the Internet as a decoy intended to attract individuals and systems attempting to gain unauthorized access to others' computers. Need another definition?
Horizontal Interoperability
Definition: Horizontal Interoperability occurs when applications run and conduct the business of an organization by sharing data automatically. What This Means: Horizontal interoperability in an education setting refers to the automatic sharing of data and information among applications within the same organization ...
Hot Back-Up Site
Definition: A hot back-up site provides all the major services of an agency’s primary IT infrastructure in the event the primary site crashes or is taken out of service. What This Means: The hot back-up site is essential for those services that ...
