how the internet works

noura alkindi

how the internet works

web cache server

  1. A web cache (or HTTP cache) is an information technology for the temporary storage (caching) of web documents, such as HTML pages and images, to reduce bandwidth usage, server load, and perceived lag.

ip adress

  1. a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.


  1. A DNS server is a server software program that performs Domain Name Services (DNS). This involves taking a full host name such as '' or a domain name such as '' and returning the corresponding Internet Protocol (IP) address such as


  1. A URL is one type of Uniform Resource Identifier (URI); the generic term for all types of names and addresses that refer to objects on the World Wide Web. The term "Web address" is a synonym for a URL that uses the HTTP / HTTPS protocol.


  1. An ISP (Internet service provider) is a company that provides individuals and other companies access to the Internet and other related services such as Web site building and virtual hosting.

Project Loon

what is project loon ?

  1. Project Loon is a research and developmentproject being developed by Google with the mission of providing Internet access to rural and remote areas. The project uses high-altitude balloons placed in the stratosphere at an altitude of about 32 km (20 mi) to create an aerial wireless network with up to 3G-like speeds.

how loon moves ?

Winds in the stratosphere are generally steady and slow moving at between 5 and 20 mph and each layer of wind varies in direction.

how loon connects

Three radio transceivers

* Balloon- to balloon communications

* Balloon- to- ground communications

* Third for backup

The balloons use antennas equipped with specialised radio frequently technology.

Project loon currently uses ISM bands that are available for anyone to use.

Where is loon going ?

Project loon began at 2013 and will continue at 2014.