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When these two begin to contact the persons who are further in contact with other people, then the
number of people in relationship increases. For example, if A is in contact with B and A is also in contact
with C, and if B comes in contact with C, then it forms a network.
Notes
The users must be cautious as some users of a site may not upload the correct profile or true information
about themselves.
On WWW, there are many social networking sites that provide different ways for users to interact, such
as through e-mails, comments, sharing photographs, instant messaging, etc. Networking between two
people on Internet takes place only when the users from both the end confirm in order to be included as
a part of a link with each other.
Social networking websites are being used regularly by millions of people. Some of them are: Whatsapp,
Facebook, Twitter, Linkedin, Skype, Instagram, etc.
In social networking site, a user creates his own profile by uploading information about himself. In social
network, it may be possible that the two people in network might not know each other personally, they
may know each other only based on their profile which has been uploaded by themselves.
MOBILE TECHNOLOGIES
If there is one technology to name that has revolutionized the way people are contacting or communicating
with each other in the last 20 years, it must be ‘Mobile Cellular Technology’.
The communication through mobile cellular began during 1980. Since then mobile technology has
undergone considerable changes and has resulted into portable mobile communication and smartphones
that have become very popular in last few years.
This reform has been due to requirement of upgraded service compatible transmission technology and
to meet higher expectations and very high increase in telecom customers. Portable devices have been in
process of huge changes. The data transfer or download speed varies with the congestion of the network
36 Touchpad Computer Applications-X

