All of these are free and offer basic password protection for security. If you are looking for crossplatform VNC software, then TigerVNC () is what you need. Windows users can get TightVNC (while OS X users can use Chicken (). With the basics out of the way, you can try it out for yourself. A single server machine can connect to multiple client machines - useful for collaboration or presentations with multiple users. The client machine connects to the server and can be granted access to either view or to control the server machine. A typical VNC setup consists of a server and client machine. In fact, several companies use VNC as the backbone to offer remote tech support to their customers. VNC functionality is also available on mobile operating systems (using apps). Using VNC, you can not only view the screen of a remote computer but also control it. VNC (Virtual Networking Computing) is one of the most commonly used methods for screen sharing. If your laptop has WiDi and a third generation Intel Core processor, WiDi supports mirroring of 1080p full HD video, Blu-Ray playback and transmission of 5.1 channel digital audio.
The adapter is what outputs the signal to the display using an HDMI cable - the advantage is that it is small enough to be hidden away and achieves high fidelity transmission without any fuss.
Adapters are available from brands like Netgear, Logitech, D-link & Belkin, priced at roughly Rs 6,000. With WiDi, you can wirelessly connect your laptop to any HDMI capable display - the only catch is that you need to separately purchase a WiDI adapter which receives the signal from the laptop.
Look for a WiDi sticker or check the specifications of your machine to find out whether it has WiDi. Certain laptops (especially newer Ultrabooks) come with Intel's WiDi or Wireless Display feature.
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