Open Systems Interconnect (OSI) layer 1

Open Systems Interconnect (OSI) layer 1
   The first layer of OSI, known as the physical layer; represents the actual hardware interface, electrical or mechanical, that connects a device to a transmission medium.

IT glossary of terms, acronyms and abbreviations. . 2015.

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  • Open Systems Interconnect (OSI) layer 2 —    The second layer of OSI, known as the data link layer; organizes data into frames and sequences for transfer across the physical layer. Layer 2 primarily detects and corrects message errors being transmitted across any physical link, and… …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) layer 4 —    The fourth layer of OSI called the transport layer; recovers data that may have been lost due tonode failure on the lower network layers, and maps transport and network addresses. Layer 4 also establishes and manages reliable network… …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) layer 6 —    The sixth layer of OSI called the presentation layer; defines the way in which information is presented so that the communicating devices interpret it properly. This layer controls the format of screens and files, and defines syntax, control… …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) layer 3 —    The third layer of OSI, called the network layer; routes data from one element to another until it reaches its final destination …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) layer 5 —    The fifth layer of OSI called the session layer; is basically a dialogue between two users or devices during which data is exchanged in a conversational manner …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) layer 7 —    The seventh layer of OSI, known as the application layer; applies to the actual meaning rather than the format or syntax of applications, and permits communication between users …   IT glossary of terms, acronyms and abbreviations

  • Open Systems Interconnect (OSI) model —    A seven layer hierarchical reference structure developed by the ISO for defining, specifying, and relating communications protocols and for standardizing communication between systems manufactured by different vendors. See also MAC sublayer,… …   IT glossary of terms, acronyms and abbreviations

  • Link layer — In computer networking, the link layer is the lowest layer in the Internet Protocol Suite (commonly known as TCP/IP ), the networking architecture of the Internet (RFC 1122, RFC 1123). It is the group of methods or protocols that only operate on… …   Wikipedia

  • Computer Networks and Internet Technology — This article gives a brief outline of foundation for networks, direct link networks, packet switching, internetworking, end to end protocols, resource allocation issues, and applications. Contents 1 Computer networks 2 Connection method 3 …   Wikipedia

  • Frame relay — In the context of computer networking, frame relay consists of an efficient data transmission technique used to send digital information. It is a message forwarding relay race like system in which data packets, called frames, are passed from one… …   Wikipedia

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