- Image via Wikipedia
It’s truly amazing that technology has gotten so small over the last several years. Cell phone technology filled the entire floor of an office building 30 years ago, and today it fits neatly into a pocket. Remember when the first mobile phones came out? They were big heavy boxes that were very expensive and the service was spotty at best. Phones have come a long way.
If a cell phone were taken apart the following items would be found:
- A circuit board that is the heart and brains of the phone
- An antenna
- An LCD (Liquid Crystal Display) screen
- A keyboard
- A microphone
- A speaker
- A battery
- The phone casing
Key Advancements and Innovations in Phone Technology
The circuit board has chips in it that perform some of the functions of the phone. When someone makes a call, the phone translates the analog message into digital information, sends it to the receiving phone that turns the signal back into analog. The digital signal processor (DSP) is a processor designed to perform the signal manipulations at high speeds.
The microprocessor handles all the activities done by the keyboard and display and coordinates all the functions on the circuit board.
ROM and Flash memory chips enable storage of information, such as the contact list and operating system. The radio frequency and power section manage recharging and power management, as well as deal with hundreds of FM channels at the same time. The radio frequency amplifiers handle signals coming to and from the antenna. It isn’t rocket science, but it might as well be, for people that aren’t technically adept. Many people have given up their land-lines completely as everyone in the house has a personal cell phone, now.
