Terms that are on use on this site.
There are 493 entries in this glossary.H
| Term | Definition |
|---|---|
| Hand shaking |
contact among or between CPUs for identification. |
| Handshake |
An interface procedure that is based on status/data signals that assure orderly data transfer as opposed to asynchronous exchange. |
| Hardware |
the physical, manufactured components of a computer system, such as the circuit boards, CRT, keyboard, and chassis. |
| Harmonic distortion |
Continuous distortion of the normal sine wave, occurring at frequencies between 60 Hz and 3 kHz. |
| Heuristic |
Describes an approach based on common sense rules and trial and error, rather than on comprehensive theory. |
| High-level language |
A problem-oriented programming language in which each instruction may be equivalent to several machine-code instructions. |
| HMI |
Human-machine interface |
| Host |
1) A central controlling computer in a network system. |
| 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 swap |
exchange of components during operation. |
| HTML |
Hyper text markup language |
| Hypertext |
An interactive on-line documentation technique that allows users to
select ?? typically via a mouse click ?? certain words or
phrases to immediately link to information related to the selected item. |
| Hysteresis |
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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Siemens Canada's national tour series stopped in Oakville, Ont., on May 16 to showcase the company's latest TIA Portal V12 software and next generation controller family SIMATIC S7-1500. Watch as…
