Wireless communication between computers and other computers or a network of computers uses the same radio waves as walkie-talkies. This might not seem technologically impressive at first, but the amount of data makes all the difference. Radio waves and other forms of energy on the electro-magnetic spectrum actually travel in wave form. The frequency of a signal denotes the number of waves in a certain time frame that are transmitted.
Because every wave contains a certain amount of information, the more waves that are received, the more information is received. Walkie-talkies operate at such a low frequency that if they were used to transmit actual data, they would only be able to send about 1,000 bits every second. To compare actual frequencies, the most inefficient wireless routers transmit at 2.4 GHz per second, while a high-end walkie-talkie might operate at 49 MHz every second.
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