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    W8 Local Area Network and Wide Area Network - Presentation

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    Clash Clan
    This document provides an overview of data communication and network topics including: 1) It defines local area networks (LANs), which connect computers within a small geographic area like a building, and can be connected to other LANs via wide area networks (WANs) like the internet. 2) Common LAN types are discussed including home networks, wireless LANs, and personal area networks. 3) Wide area networks are described as connecting multiple LANs across large geographic distances using technologies like the internet or phone lines.

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    W8 Local Area Network and Wide Area Network - Presentation

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    Clash Clan
    19 views14 pages
    This document provides an overview of data communication and network topics including: 1) It defines local area networks (LANs), which connect computers within a small geographic area like a building, and can be connected to other LANs via wide area networks (WANs) like the internet. 2) Common LAN types are discussed including home networks, wireless LANs, and personal area networks. 3) Wide area networks are described as connecting multiple LANs across large geographic distances using technologies like the internet or phone lines.

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    This document provides an overview of data communication and network topics including: 1) It defines local area networks (LANs), which connect computers within a small geographic area like a building, and can be connected to other LANs via wide area networks (WANs) like the internet. 2) Common LAN types are discussed including home networks, wireless LANs, and personal area networks. 3) Wide area networks are described as connecting multiple LANs across large geographic distances using technologies like the internet or phone lines.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    19 views14 pages

    W8 Local Area Network and Wide Area Network - Presentation

    Uploaded by

    Clash Clan
    This document provides an overview of data communication and network topics including: 1) It defines local area networks (LANs), which connect computers within a small geographic area like a building, and can be connected to other LANs via wide area networks (WANs) like the internet. 2) Common LAN types are discussed including home networks, wireless LANs, and personal area networks. 3) Wide area networks are described as connecting multiple LANs across large geographic distances using technologies like the internet or phone lines.

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    of 14

    Introduction to Computing

    Chapter 4: Data Communications


    and Networks

    Mr. Mark Christopher R. Blanco, CCNA


    Mr. Arthur D. Ollanda, CCNA
    Prof. Dennis B. Gonzales, DIT
    Local Area Network
    Local Area Network (LAN) is the smallest grouping among the
    Internet Technologies.
    A local-area network (LAN) is a computer network that spans
    a relatively small area. Most LANs are confined to a single
    building or group of buildings, however, one LAN can be
    connected to other LANs over any distance via telephone
    lines and radio waves. A system of LANs connected in this way
    is called a wide-area network (WAN).
    (Webopedia.com)

    Local Area Network (LAN) has different variety of standards


    like Ethernet, Home Network, Wireless LAN and Personal Area
    Network.
    Home Network
    is a type of network that is being utilized nowadays by
    individuals for their homes and apartments. This network
    allows all users to connect and share resources.

    Wireless LAN
    is somehow the same as with the Local Area Network but
    the only difference is the way it is deployed. Wireless LAN
    uses radio frequency to connect to different computer
    and devices. This type of network won’t work without the
    Wireless Access Point that serves as the base station.

    Personal Area Network


    is a type of wireless network that works within a very small
    area – your immediate surroundings. PANs connect
    cellphones to headsets, PDAs to other PDAs, keyboards to
    cellphone, and so on.
    Wide Area Network
    is a much bigger network than LAN because if we talk about
    WAN we are talking about a large geographical scope.

    WAN is a collection of computers and network resources


    connected via a network over a geographic area. Wide-
    Area Networks are commonly connected either through the
    Internet or special arrangements made with phone
    companies or other service providers. A WAN is different from
    a MAN because of the distance between each of the
    networks. In a WAN, one network may be anywhere from
    several hundred miles away, to across the globe in a different
    country.
    (ComputerHope.com)
    Client-Server Model

    Client Server Model is a distributed communication


    framework of network processes among service
    requestors, clients and service providers. The client-server
    connection is established through a network or the
    Internet.
    (Techopedia.com)
    Peer-to-Peer Model
    Peer-to-Peer Model is a network created when
    two or more PCs are connected and share
    resources without going through a separate
    server computer. A P2P network can be an ad
    hoc connection—a couple of computers
    connected via a Universal Serial Bus to transfer
    files. A P2P network also can be a permanent
    infrastructure that links a half-dozen computers
    in a small office over copper wires. Or a P2P
    network can be a network on a much grander
    scale in which special protocols and
    applications set up direct relationships among
    users over the Internet.

    (ComputerWorld.com)
    Network Topology
    is the way to arranged or configure a network. And it has 6
    different common types.
    Bus Network
    a network arrangement wherein all devices are
    connected into a common cable called Bus or Backbone

    Ring Network
    a design wherein each computer or device is connected
    with other two computer or device forming a ring

    Star Network
    each devices is connected directly to a central network
    switch
    Tree Network
    each device is connected to a central node, either
    directly or through one or more other devices. The central
    node is connected to two or more subordinate nodes that
    in turn are connected to other subordinates and so forth,
    forming a treelike structure

    Hybrid Network
    combination of different topologies that is utilize by big
    organization for their complex network

    Mesh Network
    newest type of topology that does not use a specific physical
    layout because mesh requires that each node have more
    than one connection to the other nodes
    Communication Medium
    Data transmission and other Networking technologies is
    nothing without the bridge or the Communication
    Medium. This Communication Medium plays a vital role in
    the data transmission or networking because they are the
    one who carry the data from one point to another.
    Communication Medium can be either wireless or wired
    (physical connection).
    Wired (Physical Connection) uses tangible
    medium to link two different devices communicating to
    one another. Wired Connection has variants such as
    Twisted Pair Cable, Coaxial Cable and Fiber Optic Cable.

    Wireless Connections is the opposite of Wired


    (Physical Connection) because in wireless it uses radio
    frequency, microwave, satellite or even infrared which
    cannot be seen by human eye.
    Twisted Pair Cable
    are pairs of copper thin copper wire that are literally
    twisted together. Common application of Twisted Pair is
    the LAN Cables and the Telephone Cable.

    Wired Medium
    Coaxial Cable
    is a high-frequency transmission cable, which replaces the
    multiple thin wires of UTP or STP. Coaxial uses a single solid
    copper core and is usually applied in Cable Antenna
    Television.

    Fiber Optic Cable


    is the thinnest type of cable because it utilizes fiber optics
    which is usually 9micro meter to 65micro meter. Imagine, Fiber
    optic can be much thinner than your hair. Fiber Optic uses
    light for transmission instead of the electric current.
    Radio Frequency
    is a wireless transmission that uses electromagnetic waves to

    Wireless Medium
    transmit data through air. This transmission is usually measured in
    Hertz (KHz, MHz or GHz). One Hertz is equivalent to one cycle per
    second.

    Microwave
    is another type of electromagnetic waves whose frequencies is
    between 1 GHz to 30 GHz. That is widely used for point to point
    communication because of their small wavelengths (that allows
    antennas to direct them in narrow beams).

    Satellite
    is a communication system that act as a middleman or
    transponder to transmit data from one point to another in a large
    geographical scope.
    Wireless Medium
    Infrared
    is still an electromagnetic waves whose wavelengths are
    longer than the visible lights but shorter than the radio waves.
    In order to use Infrared you need to make the two devices
    near to each other or their IR Transmitter and Receiver should
    be facing one another.

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