The Invention of the Telephone and How It Has Changed Over the Years Es

The Invention of the Telephone and How It Has Changed Over the Years closely 100 years ago, Alexander Graham Bell invented the foretell byaccident with his assistant Mr. Watson. Over galore(postnominal) years, the modern version ofthe telephone makes the one that Bell invented look like a piece of junk.Developments in tone dialing, c totally tracing, music on hold, and electronicringers have greatly changed the telephone. This marvelous invention allows us to communicate with the entire globe24 hours a day just by punching in a wide telephone number. It is the mostused piece of electronic apparatus in the world. It is probably one of the mosteasy to use electronics available too. each you have to do is pick up thereceiver, listen for the tone, and then direct a number using either tone or thump dial. A telephone can be separated into two main(prenominal) categories there is the tone(touch tone) or the older rotary dial (pulse) telephones. then(prenominal) you can dividethose into other categories such as business track (multi -- line) or home line(single line). You can also have some(prenominal) other types of phones there be thosethat hang on the wall, on the desk, and so forthTHE HANDSET No matter what kind of telephone you own, there has to be some devicethat allows you to talk to and listen to. This device is called the handset. Thehandset is unremarkably made out of p workic and in spatial relation it are two main componentsthe transmitter and the receiver.THE TRANSMITTER It is the job of the transmitter to turn the air hug created byyour sound waves to electrical signals so they can be send to the othertelephone. The waves hit a thin skin called the diaphragm that is physicallyconnected to a reservoir of snow granules. When the pressure hits thediaphragm, it shakes up the carbon granules. Then the carbon expands andcontracts, depending on what force is exerted. At two points on the outer shellof the reservoir of the carb on are two outlets of electrical energy from the talkbattery. By applying voltage, a current is made and is passed along the lines tothe waiting telephone. At the other end the current is transformed back tospeech.THE murderer The receiver turns an ever varying current back to speech. A for goodmagnetized soft iron core is covered in many turns of very fine wire. Throughthe wire, the electrical c... ...ed back to the number.TELEPHONE corduroys Older telephone lines were made of fork shaped piece of metal attachedto wires with a tool called the crimper. When installed, these wires werescrewed into the terminal box on the wall. This is truly a pain in the rear endbecause if you are expiration to fix the phone, you have to unscrew the box, then allthe screws. This process could last for hours at a time. To make this job a lot easier, gyrate cords and modular lines wereinvented. To take out the handset or telephone, all you have to do is to unplugthe modular connector from its match and that is it. standard cords can be boughtnearly in any electronics store. in that respect are three kinds of cords. One is the full modular cord. There aresmall modular clips on both ends of the cord. The second is the one mentioned inthe first paragraph, this is called the spade -- lug cord. The third one iscalled the 1/4 modular, this cord has one modular connector on one side and theold fashioned spade -- lug end on the other. These 1/4 cords are not very common.BIBLIOGRAPHYBOOK THE talk of the town TELEPHONE AUTHOR STEVE SOKOLOWSKI PUBLISHER TAB BOOKS NOV.1991