Mobile phones

All about mobile phones,,,

An electronic telecommunications device, often referred to as a cellular phone or cellphone. Mobile phones connect to a wireless communications network through radio wave or satellite transmissions.
They have different features, including:

• voice communications
• Short Message Service (SMS)
•  Multimedia Message Service (MMS)
• Internet
• Voice calls
• Text messages
• Call registers
• MP3 playback (music)
• MP4 playback (video)
• Alarms
• RDS (Radio Data System) Radio Receiver
• Document and memo recording
• Personal digital assistant (PDA) operations
• Personal organizer operations
• Streaming video
• Downloading video
• In-built cameras (3.2+mpx) and camcorders with flash and autofocus for video recording
• Games
• PTT (push to talk)
• Universal Serial Bus or USB (2.0)
• Memory card reader (SD)
• WiFi Connectivity
• Bluetooth (2.0)
• Video calling
• Ringtones
• Instant messaging
• Internet browsing and e-mail
• Functions as a wireless modem for personal computers

There are features which help in improving the quality of the pictures and videos to make them look as if taken by professional gears.

references,,,

• http://www.onediy.com/technologies-gadgets/mobile-phone-functions.html
• http://www.webopedia.com/TERM/M/mobile_phone.html

video of the mobile phone's evolution