IT's All About

IT Infrastructure – Telecommunication and Network

Posted: October 16th 2012

Still on the Information Technology Infrastructure. Now we will discuss about the computer telecommunication and networking which  it is essential on this day. With computer Telecommunication and Network I could posted my article, I could say hello to my distance friends, I could share my work, I could share my hobbies, I could get a good information, and many others.

Telecommunication is a systems used in transmitting messages over a distance electronically and Network is a large system consisting of many similar parts that are connected together to allow movement or communication between or along the parts or between the parts and a control center. From the definition above, we could see that Telecommunication and Network are relate to each other. It’s defined that Telecommunication and Network is to communicate. So, the Computer Telecommunication and Network are, the communication between two or more computer system to share or transmitting a message over a distance.

The Telecommunication system consist of software and hardware that allow the system to transmits information from one location to another, the component include :

Hardware :

  • Modem : or also called Modulator Demodulator, is  a system device that modulate an analog signal to encode digital information, and also demodulate itIn the simple way, the modem help user to connect to an internet.
  • Multiplex : is a device that transmits multiple signals over single medium
  • Front-end Processor : is a specialized computer dedicated to managing communication tasks.
  • Router: is a device that forwards data packets between computer network, creating an overlay internetwork. A router is connected to two or more data lines from different networks.

Media : is a tools to make a connection between computer occur.

  • Wired Based Communication :
  1. Twisted Pair Wire
  2. Coaxial Cable
  3. Fiber Optic Cable
  • Wireless Based Communication :
  1. Microwave
  2. Sattellite
  3. Radio

The Computer Network have some type based on the area, function, and architecture of the network

a. Based on the Area, the network divided into three, such as LAN, MAN, and WAN. What is that?

LAN (Local Area Network) :
is a computer network that encompass area in one room, building, or some building that close one to other. On LAN system there are must be a two computer or more that can be communicating. LAN system, usually consist of  Computer server, and computer client.

MAN (Metropolitan Area Network)
If the computer not connected in one location, even the location isn’t on the same city or place, this type of network called Metropolitan Area Network. Basically, MAN is the bigger LAN.

WAN (Wide Area Network)
is a computer network that needs long distance telecommunication connection as the conneciton media between network through  a far-far distance.

b. Based on the Function, the network divided into Peer to peer network and Client to server network.

Peer to Peer
On this type, every computer is connected one to other without any centralized control on the server. Every computer could give

Client to Server
Not like the Peer to Peer type that doesn’t need a computer server, on this type there are the computer who give a network service (server) and a computer who just take the network service (client).

c. Based on the architecture, the network divided into some topology such as,

Bus Topology

Ring Topology

Mesh Topology

Star Topology

Tree Topology

 Beside the hardware, to make a telecommunication and a network, the systems needs a software to control and maintain the communication. The Software is :

  • Network Operating System – Such as the operating System which it is have a function to control and manage the hardware so the hardware could work, so the Network Operating System who control the network device to work together and make a network.
  • Network Management Software – is a software that have function to watch the network. Element which watched are network activity, on / off the node, and many other.
  • Protocols – specify rules that govern device communication over the network

That is the Computer network, one last discuss is about the security. When we connected to a network, it will be full of threat, there are a few security system that help the user secure such as, Firewall, Anti Virus, and many other.
Thanks For Watching my blogs… Enjoy the greatness of technology on my next blogs. 🙂

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