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UNIT                                              Web Applications

               4                                                      and Security









                   Topics Covered                                                                          95%

                     Types of Impairment                         Computer Accessibility
                     Accessibility Options in an Operating System    Networking Fundamentals
                     Internet                                    Getting Access to Internet Through Internet Service Providers
                     Data Transfer on the Internet               Steps to Check For Active Internet Connection
                     Concept of Instant Messaging (IM)           Etiquettes To Be Followed While Chatting
                     Chatting Using Yahoo Messenger              Creating and Publishing Web Pages (Blog)
                     Using an Offline Blog Editor                What is Online Transaction?
                     What is Internet Security?                  Antivirus
                     General Guidelines for Managing Strong Passwords    What is a Firewall?
                     Clearing Data Stored in Browsers            Maintain Workplace Safety
                     What is First Aid?                          Prevent Accidents and Emergencies
                     Emergency                                   Protecting Health and Safety At Work
                     Case Studies of Hazards/Accident due to Situations Avoidable
                     How to Keep Your Workspace Safe


            By God’s grace, human beings are blessed with the best form of life among all living beings. Though some of them are
            not so fortunate and lack the basic human characteristics like few are challenged by ears, few by eyes, some by limbs,
            etc. But innovative exploration of ideas from human brain has triggered technology in a way that has empowered us
            and has paved a way to overcome many such disabilities.
            In simple words, we can say that technology plays a major role in overcoming the challenges faced by specially physically
            challenged people. Similarly, the resources of web application which has evolved out of information technology, has
            revolutionized humans to a great extent.



                    TYPES OF IMPAIRMENT

            Though technology is quite advanced and easily accessible for all types of people. But people with different types of
            impairment have different issues at the time of using computers.
            Before we discuss about the accessibility options let us first learn about different types of impairment we see in people
            around us:
            •  Cognitive impairments and learning disabilities: Children with learning disabilities like Dyslexia, Attention Deficit
              Hyperactivity Disorder (ADHD) or autism may have problems in reading the content or in problem solving.
            •  Visual impairment: The eyes are not functioning properly and the vision is affected with the problems like low-
              vision, complete or partial blindness, and color blindness. They will be facing the difficulty in reading the content
              on screen and even as a print out.
            •  Motor or dexterity impairment: The limbs are not functioning properly then a person has one of the issues like
              paralysis, cerebral palsy, or carpal tunnel syndrome or repetitive strain injury. A person may not be able to use their
              arms or hands properly to operate a computer.


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