Читать книгу Cryptography, Information Theory, and Error-Correction - Aiden A. Bruen - Страница 30

Cell phones have progressed from a basic cell phone (often a “flip phone”) to Research in Motion's BlackBerry 5810 in 2002 to Apple's first iPhone in 2007 to the first Android phone in 2008, to the smart phones of today. Phone apps allow users to video conference, watch movies, play video games, access important data, and make purchases.