CHROMECAST

Chromecast is a ulta low-cost, key shaped dongle which can plug into an HDMI input on any TV and lets users beam internet content from their smartphones, tablets or laptops onto the big TV screen.

It's an incredibly simple  to use device set up. The first step a person needs to do is plug that dongle shaped device into any free HDMI socket available on their TV . It gets its power supply via the micro-USB socket. If there is any available USB port on TV, then the user can plug the supplied cable into it and for everyone else, there is a USB main adapter inside the box.

Next is that you simply need to install the Chromecast application on your iOS device, Android device or Windows device and run the setup to add Chromecast to your 802.11n Wi-Fi network. When this is done, content from the supported apps and web-based players can be "casted" from users device to the screen on TV with a simple tap of a button or just a click on the Chromecast icon.

All the ongoing clever stuff goes behind the scene that is in the small dongle like device. Although the Chromecast seemingly appears to be streaming videos directly from the device the user is sending from, but, in reality that device merely acts as a glorified remote control. Once the Chromecast starts receiving the instructions, it can pull the videos from the internet on itself and displays it independently without the help of user's device.