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Presentation Layer: OSI Model, Computer Network, EBCDIC, ASCII, Encryption
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Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!
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| Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. The Presentation
Layer is Layer 6 of the seven-layer OSI model of computer networking.
The Presentation Layer is responsible for the delivery and formatting of
information to the application layer for further processing or display.
It relieves the application layer of concern regarding syntactical
differences in data representation within the end-user systems. Note: An
example of a presentation service would be the conversion of an
EBCDIC-coded text file to an ASCII-coded file. The Presentation Layer is
the lowest layer at which application programmers consider data
structure and presentation, instead of simply sending data in form of
datagrams or packets between hosts. This layer deals with issues of
string representation - whether they use the Pascal method (an integer
length field followed by the specified amount of bytes) or the C/C++
method (null-terminated strings, i.e. "thisisastring¿"). |
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