4G technology is the term used to describe the fourth generation of wireless connectivity. 1G technology pioneered the analog signal, allowing consumers to contact one another via wireless telephones for the first time. 2G technologies upgraded the slower analog signal to a faster, more complex digital one. This digital signal allowed cellular users to send text messages to one another through the transfer of larger packets of information.
3G technologies expanded on the digital signal, increasing it to include a wireless broadband signal. Consumers use 3G technologies to (wirelessly) connect directly to the internet and download large packets of information to their laptops, netbooks, and smartphones. These speeds, however, are not fast enough for live video chatting or HD video streaming.
The Future: 4G Networks
4G promises increased downloading speeds and more accessible connectivity. Wireless distribution companies, such as AT&T, Sprint, and Verizon, boast that users will be able to connect to 4G towers from virtually any location on Earth. Currently, wireless users must use a data card or the individual must be in a wireless hot spot to connect to the wireless 3G network.
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