Networks Foundamentals

Introduction :
It is incredible how quickly the Internet became an integral part of our daily routines. The complex interconnection of electronic devices and media that comprise the network is transparent to the millions of users who make it a valued and personal part of their lives.
Data networks that were once the transport of information from business to business have been repurposed to improve the quality of life for people everywhere. In the course of a day, resources available through the Internet can help you:
• Decide what to wear using online current weather conditions.
• Find the least congested route to your destination, displaying weather and traffic video from webcams.
• Check your bank balance and pay bills electronically.
• Receive and send e-mail, or make an Internet phone call, at an Internet cafe over lunch.
• Obtain health information and nutritional advice from experts all over the world, and post to a forum to share related health or treatment information.
• Download new recipes and cooking techniques to create a spectacular dinner.
• Post and share your photographs, home videos, and experiences with friends or with the world.
Many uses of the Internet would have been hard to imagine just a few years ago. Take for example, one person s experience publishing a home music video: