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    Lan and Wan: Types of Area Networks

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    Ping Arcenal
    This document discusses LANs (local area networks) and WANs (wide area networks). It defines a LAN as a network that connects computers and devices within a limited geographic area, allowing users to access data and resources anywhere on the network. The key components of a LAN are computers, interconnections, network interface cards, network media like cables, and network devices like hubs, switches, and routers. A WAN extends across a larger geographic area like a city or country, using communications channels that combine different media types, and are designed to operate over long distances and provide full-time or part-time connectivity between separated devices. Main components of a WAN include routers, switches, and modems,

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    © All Rights Reserved
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    Lan and Wan: Types of Area Networks

    Uploaded by

    Ping Arcenal
    26 views18 pages
    This document discusses LANs (local area networks) and WANs (wide area networks). It defines a LAN as a network that connects computers and devices within a limited geographic area, allowing users to access data and resources anywhere on the network. The key components of a LAN are computers, interconnections, network interface cards, network media like cables, and network devices like hubs, switches, and routers. A WAN extends across a larger geographic area like a city or country, using communications channels that combine different media types, and are designed to operate over long distances and provide full-time or part-time connectivity between separated devices. Main components of a WAN include routers, switches, and modems,

    Original Description:

    ITS ABOUT LAN AND WAN

    Original Title

    LAN AND WAN

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    This document discusses LANs (local area networks) and WANs (wide area networks). It defines a LAN as a network that connects computers and devices within a limited geographic area, allowing users to access data and resources anywhere on the network. The key components of a LAN are computers, interconnections, network interface cards, network media like cables, and network devices like hubs, switches, and routers. A WAN extends across a larger geographic area like a city or country, using communications channels that combine different media types, and are designed to operate over long distances and provide full-time or part-time connectivity between separated devices. Main components of a WAN include routers, switches, and modems,

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    26 views18 pages

    Lan and Wan: Types of Area Networks

    Uploaded by

    Ping Arcenal
    This document discusses LANs (local area networks) and WANs (wide area networks). It defines a LAN as a network that connects computers and devices within a limited geographic area, allowing users to access data and resources anywhere on the network. The key components of a LAN are computers, interconnections, network interface cards, network media like cables, and network devices like hubs, switches, and routers. A WAN extends across a larger geographic area like a city or country, using communications channels that combine different media types, and are designed to operate over long distances and provide full-time or part-time connectivity between separated devices. Main components of a WAN include routers, switches, and modems,

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 18

    LAN AND WAN

    Types of Area Networks


    LEARNING OBJECTIVES:

    Define and Identify the different
    types of networks.

    Discuss LAN AND WAN.
    BRIEF HISTORY OF LOCAL
    AREA NETWORKS
    Two full generations ago, in the early days of the data
    revolution, each computer served only a single user.
    Time Sharing.
    The idea of distributed computation being that
    applications programs would reside on one central
    computer called the Server.
    LAN
    LAN is a network that connects computers and
    devices in a limited geographical area.
    Most LANs connect workstations and personal
    computers and enable users to access data and
    anywhere on the network.
    COMPONENTS OF LAN
    Computers: Computers serve as the endpoints in the
    network, sending and receiving data.

    Interconnections: Interconnections enable data to travel from
    one point to another in the network.

    NICs: Network interface cards (NIC) translate the data
    produced by the computer into a format that can be
    transmitted over the LAN.
    Network media: Network media, such as cables or wireless
    media, transmit signals from one device on the LAN to
    another


    Network devices:

    1. Hubs: Allow for communications between devices for
    sending and receiving packets of data.
    2. Ethernet switches: A network switch that transmits
    data at Ethernet standard rates.
    3. Routers: Primary function of a router is to connect
    networks together and keep certain kinds of broadcast
    traffic under control.
    Protocols: a standard used to define a method of
    exchanging data over a computer network such
    as local area network,
    internet and etc.
    -Ethernet protocols
    -Internet Protocol (IP)






    FUNCTION OF LAN
    Data and applications: When users are connected through a
    network, they can share files and even software
    application
    programs.
    Resources: The resources that can be shared .
    Communication path to other networks: If a resource is
    not available locally, the LAN, through a gateway, can provide
    connectivity to remote resources.
    HOW BIG IS A LAN?


    Small office/home office (SOHO): The SOHO
    environment typically has only a few computers and some
    peripherals such as printers.

    Enterprise: The enterprise environment might include
    many separate LANs in a large office building or in different
    buildings on a corporate campus.
    WAN
    WAN
    It is a computer network that covers a large geographic area
    such as city, country using a communications channel that
    combines many types of media such as telephone,lines,cables,and
    air waves.

    WAN ARE DESIGNED
    TO:
    Operate over a large geographical area.
    Provide access over serial interfaces operating at lower
    speeds.
    Provide full-time and part time connectivity connect
    device separated over wide, even global areas.
    MAIN COMPONENTS OF WAN
    Routers- An electronic device that connects a local area
    network (LAN) to a wide area network (WAN) and handles the task of
    routing messages between the two networks.
    Switch - A switch is a network device that selects a path or
    circuit for sending a unit of data to its next destination.

    Modem - Short for modulator/demodulator, a modem enables a
    computer to communicate with other computers over telephone
    Lines.
    HOW WANS WORK

    WANs are either point-to-point, involving a direct
    connection
    between two sites, or operate across packet-switched
    networks, in which data is transmitted in packets over
    shared
    circuits.

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