Labeling Dictionary

Labeling systems dictionary

Labeling Dictionary H

Hand shaking
Contact among or between CPUs for identification.
An interface procedure that is based on status/data signals that assure orderly data transfer as opposed to asynchronous exchange.
The physical, manufactured components of a computer system, such as the circuit boards, CRT, keyboard, and chassis.
Hertz (Hz)
A unit of measurement that measures how often a periodic event, such as a waveform, occurs. One hertz equals one cycle per second. Frequency is often measured in kilohertz (KHz, 1000Hz), megahertz (MHz, 1000 KHz), gigahertz (GHz, 1000MHz), or terahertz (THz, 1000 GHz). Most common cycle time is 60 Hertz.
Abbreviation for human-machine interface.
A measure of the time rate of doing work defined as the equivalent of raising 33,000 pounds one foot in one minute. Electrically, one horsepower is 746 watts.
1) A central controlling computer in a network system. 2) Any device on a network system that provides a controlling function to another device on the network. 3) Any intelligent device for which another device is providing a communication interface to a network.
Host computer
The primary computer in a multi-processor network that issues commands, accesses the most important data, and is the most versatile processing element in the system.
Hot melt applicator
Hot melt adhesive (HMA), also known as hot glue, is a form of thermoplastic adhesive designed to be melted in an electric hot glue gun. In industrial use, hot melt adhesives provide several advantages over solvent-based adhesives. Volatile organic compounds are reduced or eliminated, and the drying or curing step is eliminated.
Hot stamp printing
Hot stamping is a dry printing method in which a heated die and foil are used to apply graphics to a surface.
Abbreviation for hyper text markup language.
Human Machine Interface (HMI)
Interface through which an application program provides information to the machine operator, and acts as the interface method between the human and the equipment/machine.
1) The effect of residual magnetism whereby the magnetization of a ferrous substance lags the magnetizing force because of molecular friction. 2) The property of magnetic material that causes the magnetic induction for a given magnetizing force to depend upon the previous conditions of magnetization. 3) A form of nonlinearity in which the response of a circuit to a particular set of input conditions depends not only on the instantaneous values of those conditions, but also on the immediate past of the input and output signals.

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