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| | header - a Whatis.com definition |
 | | In information technology, a header is, in general, something that goes in front of something else and is usually repeated as a standard part of the units of something else. |
 | | 2) In e-mail, the header is the part of a message that describes the originator, the addressee and other recipients, message priority level, and so forth. |
 | | 4) In a network transmission unit, a header precedes the data or control signals and describes something about the file or transmission unit, such as its length and whether there are other files or transmission units logically or physically associated with this one. |
| whatis.techtarget.com /definition/0,,sid9_gci213480,00.html (208 words) |
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