Input

Free INPUT Information
Hoover's, a D&B company, provides comprehensive, in-depth, free coverage on INPUT. Subscribe today and get access to company overviews for 40,000 proprietary records.
www.hoovers.com

Warning: mkdir() [function.mkdir]: Permission denied in /home/webs/affiliatelib2/CacheManager.php on line 12

Warning: mkdir() [function.mkdir]: No such file or directory in /home/webs/affiliatelib2/CacheManager.php on line 12

Warning: fopen(/home/templatecore2cache//*cluesnet.com/7d/7d4fa2133abfaf6371128088f0e42173ea522419.tc2cache) [function.fopen]: failed to open stream: No such file or directory in /home/webs/affiliatelib2/CacheManager.php on line 130

Warning: fwrite(): supplied argument is not a valid stream resource in /home/webs/affiliatelib2/CacheManager.php on line 131

Warning: fclose(): supplied argument is not a valid stream resource in /home/webs/affiliatelib2/CacheManager.php on line 132

Input is the term denote either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the model (abstract)ing, system(s) design and system(s) exploitation. It is usually connected with other terms, e.g., input field, input variable, input parameter, input value, input signal, input device and file format.

Overview From the most general systemics perspective, input is a subjective concept and depends on how the system is used. In such sense, the same system can have different inputs in different applications.

In the case of a process description/model, the concept input is closely connected with the concept output. Here, what enters is called input and what exits is called output.

Example:For an abstract system A(x,y,p), where x,y are variables and p is a parameter, x may denote input (variable) and y may denote the output for a process: y = f(p,x), but, for another Objective (goal)/(system application), the system A can be the carrier of a process x = g(p,y), where y is an input and x is an output.

Usually, in the modeling of a problem/process, input are these variables which are known and output are those unknown to us yet.

In recognition that the quality of the input can be crucial to the value of the output, a famous saying teaches us "Garbage IN, Garbage OUT" (GIGO).

Specific meanings In different contexts, input has several more concrete domain-dependent meanings.

Information processing In information processing, input refers to either information received or the process of receiving it;

In human-computer interaction, input is the information produced by the User (computing) with the purpose of controlling the computer program. The user interface determines what kinds of input the program accepts (for example, command (computing)s or text typed with keyboard and mouse clicks).
Input also comes from computer networks and storage devices such as disk drives.

Control theory In control theory, the inputs of a system are the signals that can be observed or affected that feed into the system. Specifically, inputs are differentiated from state (controls).

In equity theory In equity theory, inputs are the skills, time, effort, expertise, experience or qualifications that an employee brings to his job.

Economic theory In economics, inputs refer to priced or unpriced resources used in a production process, and outputs refer to the priced or unpriced results of that process. Normally, inputs are regarded as costs, and outputs as products. Outputs may be valued gross (before deduction of costs from sales) or net (after deduction of costs from sales). Input-output economics was popularised by the economist Wassily Leontief who devised an ingenious system of input and output accounts and Matrix (mathematics) to analyse the flows of goods and services between different sectors of a national economy. In national accounts an attempt is made to value national inputs and outputs according to consistent valuation principles, to measure the creation and distribution of wealth.

See also

References External links

Definitions of input by the freedictionary.

INPUT - raising awareness of INsulin PUmp Therapy
Who are we? INPUT is a patient led support group for people using insulin pumps to control their diabetes. It is run by pump users and their families and was formed in November ...

INPUT - raising awareness of INsulin PUmp Therapy
English and Irish input newsletters. Winter 2005/2006; Winter 2004/2005; Summer 2003; Ireland 2001

input from FOLDOC
input < architecture > Data transferred from the outside world into a computer system via some kind of input device. Opposite: output. (1997-04-28)

input/output from FOLDOC
input/output < programming, operating system > (I/O) Communication between a computer and its users, its storage devices, other computers (via a network) or the outside world.

Office Furniture Installations, Intelligent Homes, Invisible Speakers ...
Office Furniture Installations, Intelligent Homes, Invisible Speakers, Industrial Automation - Input Installations Ltd, Haddenham, Buckinghamshire, UK

INPUT home
INPUT PMU runs residential pain management programmes for chronic pain sufferers at St Thomas' Hospital, London and carries out research on chronic pain.

BBC - GCSE Bitesize - ICT | Hardware | Input devices
There are many input formats which enable us to gather up and collect information, and enter data and instructions into the computer.

Input - Wikipedia, the free encyclopedia
Input is the term denoting either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the modeling ...

Input Youth - Job Guides and Careers Advice
A free information resource for young people looking for careers advice, interview tips, news and site links.

The input Tag
HTML Encyclopaedia The input tag. The HTML element text is used to obtain user input in a variety of ways. The particular type of input is indicated by the value ...