Header

From The IT Law Wiki

Contents 1 Data packet 2 Digital work 3 Electronic mail 4 File Management 5 General 6 Network Transmission

[edit] Data packet

Each data packet contains a header that indicates the origination and destination points of the packet.

[edit] Digital work

A header is a section of a digital work where information, data, codes and permitted uses may be embedded.

[edit] Electronic mail

A header is the section of an email message that contains vital information about the message, including origination date, sender, recipient(s), delivery path, subject, and format information. The header is generally left in clear text even when the body of the email message is encrypted.

[edit] File Management

In file management, a header is a region at the beginning of each file where bookkeeping information is kept. The file header may contain the date the file was created, the date it was last updated, and the file’s size. The header can be accessed only by the operating system or by specialized pro­grams.

[edit] General

In general, a header is a unit of information that precedes a data object.

[edit] Network Transmission

In a network transmission, a header is part of the data packet and contains information about the file or the transmission.