Friday, 26 May 2017

WEEK 3 - Computer Networking

Understanding what is computer and networking, literally computer is all those hardware including CPU, monitor, mouse and cables connected to each other to operate the computer and networking can be understood as link that connected to interact with other people to exchange information and develop contacts, especially to further one's career.

Here's a short video to understand how computer networks worked and connected


There are lots of type of networks 
  • CAN - Campus Area Network, Controller Area Network, or sometimes Cluster Area Network
  • PAN - Personal Area Network
but basically we are exposed to LAN, WLAN and MAN compared to others. They are functioning to share internet connection, application software, printers and other resources. However, they also facilitate VoIP (Voice over IP), e-mail, video conference, messaging and other communication applications. These network also work collaboratively, especially in sharing a company database or using collaboration tools to create or review documents, exchanging files among network users over the internet as long as they connected to the same network and it also connect the computers and the entertainment devices such as TV, gaming consoles and many more that located within the home or area.

These are the components of network that are vital to make the computer networking works



1. Host/End nodes


Refers to the data source and destination
Examples:
Personal Computers
Workstations
Terminals
Automatic Teller Machine


2. Transmission media


For transmitting data and control signals
Sending signal through specific media
It can be bounded or unbounded media
Bounded media:
Coaxial wire
Twisted pair wire
Fiber optic cable
Unbounded media:
Radio signals
Satellite transmission
Infrared transmission


3. Network Electronic Devices


Control data from source to destination
Provide interface between different media transmitter or different protocol
To connect multiple network together
Examples:
Bridges
Routers
Multiplexers
Switches
Hubs
Gateways
Front End Processors


4. Software/Applications

Involves technique and protocols
The protocol determines the rules and procedure to send, terminate,interpret and present data and control mistakes.
To control data transmission


5. Network Architecture Standards & Protocols
The blueprint of standards that define:
How a device in a network typically connect
How a device can communicate
To enable devices made from different companies to communicate with each other.
Example:
TCP/IP
Ethernet (802.3)
Wi-Fi (802.11)
Wimax

No comments:

Post a Comment