Showing posts with label dis advantage of wifi. Show all posts
Showing posts with label dis advantage of wifi. Show all posts

Tuesday, September 1, 2009

Future of Internet Search

The idea of this concept was to exploit the internet ability in a mobile device. Touch screen, built in camera, scanner, WiFi, google map (hopefully google earth), google search, image search? all in one device. See a building through it, it will give you the image search result right on the spot.






















Choose a building and touch a floor and it tells you more details of the building. You can use it when you want to know a car model, an insect name, what kind of food is served at a restaurant and how much, who built a bridge, etc. With detail informations like that, this gadget might only be used by secret service agents. Very futuristic concept.

Friday, June 19, 2009

WiMax

  • Wimax is also similar to Wifi but Wifi covers small distance
  • Wimax covers large distane
  • Wimax does not conflict with wifi but actually complements it.
  • WiMAX is short for Worldwide Interoperability for Microwave Access
  • IEEE name 802.16.WiMAX
  • WiMAX could replace cable and DSL services, providing universal Internet access
  • WiMAX could potentially erase the suburban and rural blackout areas that currently have no broadband Internet access
  • System consist of two parts
1)WiMax Tower
2)WiMax Reciever

WiMax Tower
  • WiMAX tower can coverage a very large area — as big as 3,000 square miles.
  • It can connect directly to the Internet using a high-bandwidth, wired connection.
  • It can connect to another WiMAX tower using a line-of-sight, microwave link.
WiMax Reciever
  • The receiver and antenna could be a small box or PCMCIA card.
  • They could be built into a laptop the way WiFi access is today.