Table of Contents
Course Notes
There are currently 6 Terms in this directory beginning with the letter I.
I
Information Technology: Meaning
The word Information Technology (IT) is a combination of two words. One is “Information” and the other is “ Technology”. Information means processed data, which carries meaning, and technology refers to the use of computers and telecommunications. IT means the application of computer and communication technologies for gathering, processing, storage, retrieval, and dissemination of information.
Internet
The Internet, sometimes called simply "the Net," is a worldwide system of computer networks -- a network of networks in which users at any one computer can, if they have permission, get information from any other computer.
Internet: Concept
Different computer experts have defined the Internet differently. The term, the Internet comes from a concept called ‘Internetworking’ which denotes the interaction between different networks of computers. We can define the Internet as the worldwide publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol(IP). It is a network of networks that consists of millions of smaller domestic, academic, business, and government networks which together carry various information and services.
Internet: Disadvantages
Theft of Personal Information Possible: If we use the Internet, we may be facing grave danger as our personal information such as name, address, credit card number, etc. can be accessed by other culprits to make our problems worse. Spamming: Spamming refers to sending unwanted e-mails in bulk, which provide no purpose and needlessly obstruct the entire system. Such illegal activities can be very frustrating for us, and so instead of just ignoring it, we should make an effort to try and stop these activities so that using the Internet can become that much safer. Pornography: This is perhaps the biggest threat related to people’s mental health particularly students’ healthy mental life. It is a very serious issue concerning the Internet. There are thousands of pornographic sites on the Internet that can be easily found and can be a detrimental factor to letting students use the Internet. Virus threat: The virus is nothing but a program that disrupts the normal functioning of our computer systems. Computers attached to the Internet are more prone to virus attacks and they can end up crashing our whole hard disk, causing us considerable headaches.
Internet: History
The Internet sometimes called simply "the Net," was conceived by the Advanced Research Projects Agency (ARPA) of the U.S. government in 1969 and was first known as the ARPANET. From a handful of computers and users, today the Internet has grown to thousands of regional networks that can connect millions of users. This global network is not owned by any single individual, company or country. Today, the Internet is a public, cooperative, and self-sustaining facility accessible to hundreds of millions of people worldwide. Physically, the Internet uses a portion of the total resources of the currently existing public telecommunication networks.
Internet: What are the Benefits?
The Internet has been perhaps the most outstanding innovation in the field of communication in the history of mankind. The Internet helps in three different ways to get information, provide information, and compile information. As with every single innovation, Internet has its own advantages and disadvantages. But usually, a greater magnitude of advantages outweighs its disadvantages. 20 years ago, the term Internet was practically anonymous to most people. And today Internet has become the most ever powerful tool for man throughout the world. The Internet is a collection of various services and resources. Access to the Internet gives a wide range of topics and media which facilitates different learning styles. The use of computers and the Internet enables learners to become researchers more easily because they can have direct access to data.
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