Frequency
Frequency describes a behavior of waves. Waves travel away from the source that generates
them. How fast the waves travel, or more specifically, how many waves are generated over a
1-second period of time, is known as frequency. If you were to sit on a pier and count how
often a wave hits it, you could tell someone how frequently the waves were coming to shore.
Think of radio waves in the same way; however, they travel much faster than the waves in the
ocean. If you were to try to count the radio waves that are used in wireless networking, in the
time it would take for one wave of water to hit the pier, several billion radio waves would have
also hit the pier.