Mobile Phone
A mobile phone (also known as a cellular phone, cell phone and a hand phone) allows calls into the public switched telephone system over a radio link.
A mobile phone can make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed-line phones across the world. It does this by connecting to a cellular network provided by a mobile network operator.In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these more general computing capabilities are referred to as smart phones. 

The example of mobile phone is smart phones .Smart phones have become powerful tools for higher education because they enable voice calls and Internet connectivity. Students are using these devices to become as mobile as possible, decreasing the need to carry laptops. Students use smart phones to take notes, record lectures, create spreadsheets and Presentations, track class schedules, use course-management systems, visit social Networking sites, broadcast short blogs through Twitter, and use instant messaging.
Unlike standard smart phones, dual-mode phones can connect directly to IP networks—in this case, to the campus network. Because of this, dual-mode phones can be used as a “wireless extension” of students’ IP phones (desk phones) in their dorm rooms. The dual-mode phone can also be used for myriad applications for learning both inside and outside the classroom.

A global network connecting millions of computer. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the global Internet community. 

Remarkably, this anarchy by design works exceedingly well.  There are a variety of ways to access the Internet .It is also possible to gain access through a commercial Internet Services Provider (ISP).

Example of internet is Facebook. Facebook is a social networking website introduced last February 4, 2004. A Free access website is privately possessed and operated by Facebook, Incorporated. 

Facebook is social software. Which appeals to adolescence and university students. These students all the time correspond or communicate explicitly concerning their lives, estimation or opinion, interests, and academics. Though the majority of us working with adults are awkward sharing ideas or information in open surroundings, the social feature of Facebook creates fun and its rapidity of learning knowledge. From the young people and university students’ perspectives not utilizing Facebook are “social responsibility or liability. A few professionals not possess an online presence or attendance can be career liability.

Facebook also is mobile phone. Containing Facebook on your mobile maintains you up to date with posts, statuses, and deliberations.Through Facebook and other social media sites, we will study or learn about each one of us, discuss or talk about concern or issues and methodologies, and defy each other.