... Bell labs and AT&T. Since then mobile devices have come a long way in terms of all its technological features. One of the newest technologies introduced to the cell phone is the cell phone camera. A cell phone camera is simply a cell phone with a colour screen and a small lens built in. This little digital camera has the ability to snap a picture anywhere and instantly send it to a contact. Although the ... door; whether they were a camera or not. Many people are concerned about stationary cameras that watch the streets and public areas. The difference between a public survalence camera...

• Word Count: 1216
• Approx Pages: 5
• Grade Level: High School

... portable telephone that works using a series of radio networks or cells. The term "cell- refers to the geographical area covered by the network base station that contains the radio equipment serving the cell. Australians commonly refer to this device as their "mobile-, while in the USA its known as a "cell phone-. Mobile phones are essentially a type of radio. With ground based mobile networks, the ... phones exchange radio signals with towers within geographical "cells-. A phone can pass from one cell to another without losing the call. Mobile phones are able to use one frequency for ta...

• Word Count: 3397
• Approx Pages: 14