In today's day and age, mobile phones have almost become a necessity. Not only do they provide easy mobile communications, but you can talk to virtually anyone from anywhere in the world. As profuse as they are, do you actually know what a mobile phone is? Mobile telephones are basically very sophisticated radios with low-power transmitters in them. Companies divide cities into small cells, about ten square miles per cell, and the phones ring into a central base station, which answers back on whether service is available and what frequency to use. These super two-way radios are what we call a mobile phone. Since a mobile phone (sometimes called a cell phone or a wireless phone) constantly changes which cell it's working within, these phones have amazing range. Now, a mobile phone works on either analog or digital technology. Analog means taking an audio or visual signal and translating it into electronic pulses. Size restrictions limit the amount of data an analog signal can carry. Generally, analog products are cheaper than digital, but analog wireless phones are quickly becoming obsolete, being replaced by the superior digital technology. Digital phones differ in that the signal is translated into binary "1"s and "0"s rather than electronic pulses. This binary code gets read and reassembled by the receiving phone. Having a simpler code means less errors and better clarity in the signal. Digital signals can also carry more information. Today there are so many mobiles it's hard to know where to begin when buying one. You can get features like Internet access, voice mail, paging, text messaging, movie capabilities, and MP3 abilities. How should you narrow down your choices? Let's Talk.com (Letstalk.com) covers every mobile phone detail from comparisons between phones and companies to mobile phone specials in your area. You can also compare mobile prices at How Stuff Works.com (Howstuffworks.com). |
Mobile Phones
