- G
The LabVIEW graphical programming language.
- global variable
Nonreentrant subVI with local memory that uses an uninitialized shift register to store data from one execution to the next. The memory of copies of these sub-VIs is shared and thus can be used to pass global data among them.
- glyph
A small picture or icon.
- GOOP
Graphical Object-Oriented Programming. A pattern for object-oriented programming (OOP), in LabVIEW. See also OOP.
- GPIB
General purpose interface bus. Also known as HP-IB (Hewlett-Packard Interface Bus) and IEEE 488.2 bus (Institute of Electrical and Electronic Engineers standard 488.2), it has become the world standard for almost any instrument to communicate with a computer. Originally developed by Hewlett-Packard in the 1960s to allow their instruments to be programmed in BASIC with a PC. Now IEEE has helped define this bus with strict hardware protocols that ensure uniformity across instrument.
- graph control
Front panel object that displays data in a Cartesian plane.
- graphical programming
Using graphical notation to program software applications. For example, programming in LabVIEW (G). See also G.
- ground
The common reference point in a system; i.e., ground is at 0 volts.
- ground reference
System ground. See also Grounded Signal.
- grounded signal
Signal sources with voltage signals that are referenced to a system ground, such as a building ground. Also called referenced signal sources.
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