Glossary of Terms


An abbreviated term for binary digit, the smallest unit of computer data.

Boom leveling

Automatic height adjustment of a spray boom often using ultrasound sensors.

Boom section controller

Electronic/mechanical equipment capable of turning on/off sections of an application boom automatically in combination with GPS positioning and area mapping.


An area defined by the specified distance around a point, line, or area.


A unit of computer storage of binary data usually comprising eight bits, and equivalent to a character. A kilobyte is one thousand bytes, a megabyte is one million bytes, and a gigabyte or “gig” is one billion bytes.


Wired data network connection between electronic devices. The hardware/wiring of CAN-Bus networks are generally the same, while the protocols for communication can be different and vary depending on the industry where they are used. These networks are used to link multiple sensors to an electronic controller, which can be linked to relays or other devices on a single set of wires. This reduces the amount of wires needed for a system and allows for a cleaner way to connect additional devices as system demands change.


The method of grouping a set of data such that all elements of a particular group have some common parameters or characteristics.

Coast Guard Beacon

A differential correction source for GPS built by the Coast Guard for maritime navigation. The signal is ground-based and generally available throughout the United States, but may be limited in some areas. The signal is free, but requires a special GPS antenna.


A line connecting a set of points with the same value. For example, contour line on a field map shows points of the same elevation.

Controlled traffic farming

A management system where all the vehicles used in a field keep to the same permanent traffic lanes in order to reduce soil compaction.


An electronic device used to change product application rates on-the-go in different parts of the field based on user directions or prescription application maps.

CORS (network)

Continuously Operating Reference Station. A network managed by the U.S. office of National Oceanic and Atmospheric Administration (NOAA) to provide GNSS data consisting of carrier phase measurements throughout the United States.


The tendency of a machine to slip sideways from its line of pull.

Data Layer

A set of related information on a GIS map. A map can have many layers to present different types of information. For example, the first layer of a map may be a satellite image of an area. The next layer may have only lines that represent roads or highways. The next layer may contain topographic information.

Data Logger

Used to store electronic data sent by a measurement device. A yield monitor is an example of a data logging device.