What are "components"??

Can any one, to the best of his/her knowledge tell me the meaning of "component" in Java?
I ve googled it, but the best I can find is that "it is an element of a larger system"...
Any more specific explanation??
to assure you what I mean, please go to:
http://www.topcoder.com/tc?module=Static&d1=tournaments&d2=tco05&d3=comp_rules#prizes
where you can see the words "design" and "development", which refers to "component design" and "component development".
regards

I think the Component in the context is referred to the Component-base Software Development.I agree with bsampieri .And i repeat it again.A component, in general, is a piece of something, generally a self-contained unit which can be swapped in or out, or a thing that has some particular function which by itself is not useful, but it's a useful part of a whole.
In addition,there are two views of A componet,external view and internal view.For external view,the customers focus on the services provided by the component.For interview,the programmer(or creater) focuses on the services required,that is the condition the caller must be satisfied.For detail,link to http://www.iist.unu.edu/newrh/III/1/docs/techreports/report276.pdf.

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