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3.2.1 Overview of the Internet (Introduction to the Internet) (The…
3.2.1 Overview of the Internet (Introduction to the Internet)
The Internet :fire:
Defination
: is a worldide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
global system made of thousands of privately and publicly owned computers and network
host/server is a computer that has two-way access to other computers:
Recieves requests
Replies to those requests
both public and private organizations own networks on the internet
each organization is responsible only for maintaining its own network
no single person, company, institution, or government agency controls or owns the internet
World Wide Web Consortium (W3C) is an international community that work together to develop standards and guideslines for the Internet
ADVANTAGES
Makes communication become cheaper, quicker, and more efficient using email, instant messages, video conference, social networking websites and various mobile applications
provide abundant information on all aspects of life which can be find easily using search engines
provide free entertainment such as online games and movies
Helps people to stayconnected with friends and family through social media and apps such as fb, twitter, whatsapp ect
provide unlimited access to education materials such as online learning videos, ebook, and educational websites
provide convenience to people through online applications such as online shopping, online reservation, and online payment
DISADVANTAGES
Expose people to riskof information theft when they use Internet applications such as email, online banking, fb
expose user's computers to malware threats such as virus, worm, or trojan horse which can easily infect computers through the Internet
expose people to pornography and inappropriate content which can lead to bad social developement
cause addiction to surfing, online gambling, social networking, and gaming which may result in social isolation among youngsters
The Intranet
:explode:
a private network of an organization which uses internet technologies to share organization's information or operations with its employees
only provides access to employees within an organization
facilitate communication and operations among employees within an organization
includes phone directories, email address, event calendars, procedure manuals, employee benefit information, and internal job postings
EXAMPLES : KMK Internet - provides email, student information system, Web server and access to the internet
The Extranet
:smiley:
A private network of an organization
that securely share parts of organization’s
information with its suppliers, vendors, partners, customers, or other organizations
provides limited access to authorized people
outside the company
Facilitate communication and business
operations between the organization and
related people or organizations
EXAMPLES : Package shipping company that allow their
customers to access their intranet to print
shipment bills, schedule pick-ups, and even track
shipped packages