When viewed as a method of data transport, wireless technology appears
very similar to wired technology. You have a piece of hardware, a method
of transmission, and connections on both ends that transform data from
human-intelligible to transportable and back. For both wired and wireless
technology, the range of transmission is an issue. You can't move your
laptop 15 feet from the wall jack when depending on a 10-foot cable.
Similarly, you can't go out for a jog and expect your in-home cordless
phone to keep a connection five miles away from its receiver. But if
you get either a 20-foot cable or a wireless connector of sufficient
power, you can move your laptop 15 feet away from the wall jack; and
if you get a cellular phone, you can go jogging five miles away from
your house and still take calls (as long as your service provider has
a reasonable antenna set up).
The methods of connection and ranges of service available vary in wireless
technology just as they do in wired technology. Home telephones with
a wireless handset have a more limited range than cellular phones; infrared
transmissions have a more limited range than radio-wave (including microwave)
transmissions. Different types of wireless solutions can communicate
ten feet, ten miles, or with a satellite in orbit.