Understanding digital communication systems

There are many forms of digital communication, the world wide web (www.) is a form of digital communication, wireless access is also another form of digital communication e.g. a wireless headset on and Xbox or Playstation 3, you use that to communicate with others. Third generation is a form of digital communication (3G) found on most modern phones now. Sending text messages (SMS) and picture messages (MMS) are both forms of digital communication. An Internet Service Provider (ISP) is a form of digital communication, ISP's are companies who provide access to the internet. Facebook, Twitter, YouTube, Tumblr etc are all forms digital communication, these are called social networking sites or Web 2.0 communities. Anything that you do which requires technology is classed as digital communication, websites, phone calls, texts, E-mails, video calls, etc.