As far as their functioning capabilities the regular keyboard and the wireless keyboard are basically the same. The difference between them is that you can move the wireless keyboard anywhere you want and you don't have to worry about wires.
A wireless keyboard operates on a different frequency than your 2.4 Ghz. router and will not cause interference.
Wireless N routers have better range and much better transfer speeds than G routers.
No.
The wireless keyboard or mouse uses infrared technology rather than ultraviolet rays to communicate with the computer, and as such there is no risk of radiation exposure with this.
Wireless keyboards are very similar to your typical wired keyboard. Depending on the type of model you get, all you do is plug the receiver into a USB port and you're all set. They can be pricier than wired keyboards however.
In my opinion wireless broadband service is better than Wi-Fi. Wi-Fi can be used by neighbors and easily lost. Wireless broadband has a better connection and can go further than Wi-Fi.
No, USB wireless cards are slower and receive a weaker connection signal than internal wireless cards.
A wireless router's antenna technology generally determines its Wi-Fi signal strength and hence its range. Generally speaking, 802.11g wireless routers offer better Wi-Fi range than comparable 802.11b units due to improved antennas.
a lot faster
yes yes it is :)
ou don't get the full range of keys on a keyboard so in that sense you can't play a lot of Beethoven on a keyboard but if you want a lot of sounds with effects than a keyboard is better. Generally if you just want to play the piano in its original sound it is best to have a piano as the sound is better and there is a full range of keys.
hydro electricity is better than normal electricity because it is cheaper.