Advantages of the Internet in Education

benefits of Internet
The fast and relatively low-cost access is one of the major benefits of Internet to people and students all over the world, as getting an Internet connection is easy. Communication and information are the two basic uses of the Internet. Information available on websites can be updated or modified at any time and for any number of times, which helps in learning and better understanding.

Using Multimedia
Arguably, it is believed that visual data has a greater impact on learning and memorizing than plain text. Therefore, images, graphics, animation, pictures, slides, documentaries, etc., have a greater appeal than a plain textbook. Using multimedia and Internet provides an opportunity for children to gain knowledge about a particular subject in depth. Students can now see actual photographs of rare bird species, or see animated graphics of a volcanic eruption to understand the concept in detail.

Online Learning
Another positive effect of Internet in education is the onset of distance education or online education (internet-based training (IBT) or web-based training (WBT). With this facility, you can take up short-term courses with the course material available online, attend virtual classes, learn, and appear for exams. One of the benefits of online learning is that people from any part of the world can gain knowledge on different subjects, complete courses, etc.

Easy Contact
Students can contact other students or their teachers via the e-mail if they have queries about any information. Sharing of information, discussions on a particular subject, etc., can be easily carried out using the Internet. At the same time, teachers can also contact parents and guardians easily using Internet.

School/College Projects
Using the Internet can be very useful for completing projects in schools and colleges. As the Internet is an ocean of information, covering nearly all subjects known to man, one can find information, research work, etc., required for one’s projects. Going through the information on the Internet is definitely faster than reading an entire book on the subject. Completing homework is also easier with the help of the Internet.

Encyclopedia
Sometimes, an encyclopedia may not always be available to students and they may have difficulty in gaining access to the books in the library. In that case, the encyclopedia of various subjects available on the Internet can be helpful. This is more useful for students who belong to communities not having English as their mother tongue.

News
All the latest news are constantly updated on the Internet on news websites. Students learning politics, can have an access to all the current affairs through the Internet. Historical accounts like speeches, biographies, archive videos and photographs, etc., are also easily available on the Internet in detailed and accurate versions.

Affordable Knowledge
Investing in research material may be tedious and unaffordable for some. But, now, thanks to the Internet, we have content websites, web encyclopedias, and dictionaries whenever we want them. Today, able as well as less-able students can benefit from the sea of knowledge on the Internet. University courses and learning is now easy for people belonging to all strata of the society with the help of online courses.

Easy Education System
Not only gaining knowledge, but, every part of the education system is simplified because of the Internet. You can now view your prospective educational institute, look up courses, enroll for online courses, take classes, research, see your results, and even look for job prospects on the Internet. Therefore, the scope of Internet in education is very wide and equal to all.

No Age Bracket for Education
Online courses provide an opportunity for people of all age groups to take up education of their choice, according to their liking and wish. Be it a student, a housewife, or a professional, they can just start up their computers, connect to the Internet, and take virtual classes. Therefore, people can now gain knowledge according to their need and time available. You are, now, never too old or too busy to learn something new.

With these points, we find that the importance of Internet in education cannot be denied, and hence, every student should be given access to the Internet for deeper understanding and knowledge of a subject. However, lots and lots of information can be termed as both, advantages and disadvantages of the Internet as students can also have an access to unwanted or unethical information and sites. Therefore, it is only wise for parents to make students understand what is good and what not for them, or keep a watch on their surfing (web browsing).

Lastly, although the Internet cannot replace books or classroom education, it is one of the best substitute for those who wish to gain deeper knowledge on literally every subject under the sun.

Star Topology Advantages and Disadvantages

Did You Know?
In the field of computers, ring, bus, tree, and star are the names assigned to specific network topologies.
Basically, the term ‘network topology’ refers to the layout pattern of interconnections of various elements of a computer network, like the nodes, links, etc. The concept is further categorized into two types: (i) physical topology, which refers to the physical design of a network, and (ii) logical topology, which focuses on how the data is actually transferred within the network.
The physical topology is further classified into six different types; namely, the point-to-point network, ring network, mesh network, bus network, tree network, and the star network. Of these, the star network in particular is considered very popular owing to its numerous advantages. That is not to say it doesn’t have any disadvantages of its own. It is important to go through the advantages and disadvantages of different network topologies―and not just the star topology alone―to determine which of these is suitable for you.
wireless-technology
What is Star Topology?
In this type of network topology, all the nodes are connected individually to one common hub. The transmission stations are connected to the central node in such a manner that the design resembles the shape of a star, and hence, the name. The star topology design resembles a bicycle wheel with spokes radiating from the center. In this case, data exchange can only be carried out indirectly via the central node to which all the other nodes are connected.
Advantages and Disadvantages
Like we said earlier, even the star topology has its own positives and negatives which have to be taken into consideration when evaluating the feasibility of the setup. While the isolation of devices happens to be its triumph card―with most of its advantages revolving around this particular aspect, its dependence on the central hub is definitely an issue of concern.Advantages

▶ It is very easy to install and manage the star network topology, as it is the simplest of the lot when it comes to functionality.
▶ It is easy to troubleshoot this network type, as all computers are dependent on the central hub which invariably means that any problem which leaves the network inoperable can be traced to the central hub.
▶ In star network topology, data packets don’t have to make their way through various nodes. The fact that there is no data collision adds to its performance by making data transfer considerably fast.
▶ Also, the fact that data packets only make it through three different points ensures that the data is safe.
▶ As the nodes are not connected to each other, any problem in one particular node doesn’t hamper the performance of other nodes in the network.
▶ Adding new machines or replacing the old ones is easy in this network topology, as disruption of the entire network is not required to facilitate the same.

Disadvantages

▶ The foremost problem with the star network topology is the fact that it is highly dependent on the functioning of the central hub.
▶ The size of the network is dependent on how many connections can be made to the hub. As the number of connections increases, so does the size, and thus, the infrastructure.
▶ If you opt for the star topology, you will require more cable than what you would if you opt for the linear bus topology. So, the expenses incurred on the former will also be relatively high.
▶ The performance of the entire network is directly dependent on the performance of the hub. If the server is slow, it will cause the entire network to slow down.
▶ If one of the nodes utilizes a significant portion of the central hub’s processing capability, it will reflect on the performance of other nodes.
▶ If the central hub is compromised, it will leave the entire network vulnerable.

star-network

As you see most of the disadvantages of star topology revolve around the dependence of entire network on the central hub, which, in turn, means that the failure of the hub can leave the entire network inoperable.

There also exists a concept of extended star topology, where even though the network is based on physical star topology, it has one or more repeaters between the central hub and peripheral nodes, which extend the maximum transmission distance beyond what is supported by the transmission power of the central hub. In this case, the fact that it increases the reach of the central hub is its biggest advantage. However, as with the simple variant of star topology, the cost incurred on the added infrastructure can be a disadvantage.