HEADER

Header

In information technology, header refers to supplemental data placed at the beginning of a block of data being stored or transmitted. In data transmission, the data following the header are sometimes called the payload or body.

The above text is a snippet from Wikipedia: Header (computing)
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header

Noun

  1. The upper portion of a page (or other) layout.
    If you reduce the header of this document, the body will fit onto a single page.
  2. Text, or other visual information, used to mark off a quantity of text, often titling or summarizing it.
    Your header is too long; "Local Cannibals" will suffice.
  3. Text, or other visual information, that goes at the top of a column of information in a table.
    That column should have the header "payment status".
  4. A font, text style, or typesetting used for any of the above.
    Parts of speech belong in a level-three header. Level-two headers are reserved for the name of the language.
  5. a brick that is laid sideways at the top of a wall or within the brickwork with the short side showing; compare stretcher
    This wall has four header courses.
  6. a horizontal structural or finish piece over an opening
  7. a machine that cuts the heads off of grain etc
    They fed the bale into the header.
  8. the act of hitting the ball with the head
    His header for the goal followed a perfect corner kick.
  9. a headlong fall or jump
    ''The clown tripped over the other clown and took a header.
  10. the first part of a file or record that describes its contents
    The header includes an index, an identifier, and a pointer to the next entry.
  11. the first part of a packet, often containing its address and descriptors
    The encapsulation layer adds an eight-byte header and a two-byte trailer to each packet.
  12. A raised tank that supplies water at constant pressure, especially to a central heating and hot water system


The above text is a snippet from Wiktionary: header
and as such is available under the Creative Commons Attribution/Share-Alike License.

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