Inside a Digital Cell Phone(Part01)

If you take a basic digital cell phone apart, you find that it contains just a few individual parts:

· An amazing circuit board containing the brains of the phone

· An antenna

· A liquid crystal display(LCD)

· A keyboard (not unlike the one you find in a TV remote control)

· A microphone

· A speaker

· A battery

The circuit board is the heart of the system. Here is one from a typical Nokia digital phone:

In the photos above, you see several computer chips. Let's talk about what some of the individual chips do. The analog-to-digital and digital-to-analog conversion chips translate the outgoing audio signal from analog to digital and the incoming signal from digital back to analog. You can learn more about A-to-D and D-to-A conversion and its importance to digital audio in How Compact Discs Work. The digital signal processor (DSP) is a highly customized processor designed to perform signal-manipulation calculations at high speed.

The microprocessor handles all of the housekeeping chores for the keyboard and display, deals with command and control signaling with the base station and also coordinates the rest of the functions on the board.

The ROM and Flash memory chips provide storage for the phone's operating system and customizable features, such as the phone directory. The radio frequency (RF) and power section handles power management and recharging, and also deals with the hundreds of FM channels. Finally, the RF amplifiers handle signals traveling to and from the antenna.

Secret CodePart02

Would you like to know your mobile is original or not?

This is what you should do

1. Type the followings on your mobile *#06#

2. Then the-international mobile equipment identity number appears. Then check the 7^th and 8^th numbers:

·IF the Seventh & Eighth digits are 02 or 20 this means your cell phone was assembled in Emirates which is very Bad quality

·IF the Seventh & Eighth digits are 08 or 80, this means your cell phone was manufactured in Germany which is fair quality

·IF the Seventh & Eighth digits are 01 or 10 this means your cell phone was manufactured in Finland which is very Good

·IF the Seventh & Eighth digits are 00 this means your cell phone was manufactured in original factory which is the best Mobile Quality

·IF the Seventh & Eighth digits are 13 or 31 this means your cell phone was assembled in Azerbaijan which is very Bad quality and also dangerous for your health

Time to check this out …………….