Post on 09-Jan-2016
description
Cell PhonesMarcella Maruca
What is It?a short-range, portable electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites
AccessoriesSMS (Short Message Service) is used for text messagingEmailPacket Switching is used for access to the internetCamera and Video RecorderMMS (Multimedia Messaging Service) for sending and receiving pictures
Inside the Cell PhonesThe circuit board The microprocessorAn antenna A liquid crystal display (LCD) A keyboard A microphoneA speakerA battery
The front of the circuit boardThe back of the circuit boardThe microprocessorThe display and keypad contentsThe cell-phone speaker, microphone and battery backup
DisadvantagesNon-repairable internal corrosion of parts results if you get the phone wet or use wet hands to push the buttons.Extreme heat in a car can damage the battery or the cell-phone electronics.Extreme cold may cause a momentary loss of the screen display.
AdvantagesCommunicate with others wherever we areHelp us with organize our daily plansEntertainment with phone games, WAP and SMS gamesShare photos with friendsCheck emails and use it as a business tool
Cell Phone ModelsMOTOROLA KRZRLG RUMORBLACKBERRY PEARLSAMSUNGG600
Cell Phone Service Companies
How Far Weve ComeCell phone technology has come a long a way and is still growing. Compared to the first cell phone, modern cell phones are smaller, more advanced and more reliable. Cell phones used to be the size of a normal house telephone but now they can fit in the palm of our hands. The only people that had cell phones when they first came out were business men but now almost every person in the United States h-as one.
Before and After(left)THENMotorolasfirst cellphone
(right)NOWPalm Treo
Bibliographyhttp://electronics.howstuffworks.com/cell-phone.htmhttp://electronics.howstuffworks.com/cell-phone6.htmhttp://electronics.howstuffworks.com/cell-phone11.htmhttp://www.sciaga.pl/tekst/19697-20-advantages_and_disadvantages_of_using_a_cell_phone