Technology has changed since the first commercial mobile phones were produced in the 1980's. Original phones were heavy, expensive and unattractive. Now they are much smaller, more efficient and have lots more functions. That's why today's smartphones can be described as multi-functional.

SMS (Short message service)- to send text messages
Camera- still images and video
Bluetooth- allowing data to be exchanged over sort distances
Wi-Fi (wireless fidelity)- to exchange data but the signal can travel long distances
Internet- to browse web pages and sent messages via webmail
MP3 player- to listen to music files
Touch screen- to make it easier to use
3G- allows the user to access the internet via a mobile phone network
Games and apps- software for entertainment or practical uses
Predictive text- makes it easier/ faster to send SMS messages
GPS (Global Positioning System)- can pinpoint your location via satellite

Memory cards are used as secondary storage- they can store data files on the . Memory card size is measured in gigabytes (GB). There are 2 types of memory card

SD (Flash memory with max storage of 2GB)- good for storing photographic images
SDHC (Flash memory with max storage of 32GB)- good for storing video files

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