Good morning students! We have finished discussing the history of Internet so now we go to the next topic, the Internet's basic services. So here are some of the services provided by the Internet.
Communication Services Information Retrieval Services Worldwide Web Services Web Services directory services, Usenet, Newsgroup and e-commerce. From the enumerated above, let us discuss those services one by one. So for number one, which is communication services. So communication is one of the most popular services of the internet.
We use internet-based communication services to contact our families and friends. on a daily basis. It is also known as internet telephony. So under communication services, we have instant messaging, email, and video conferencing. Instant messaging or IM is a type of online chat that offers text communication over the internet in real time.
It is continuously becoming one of the fastest growing forms of internet communication services because of its real-time features. Some of the many instant messengers that are providing instant messaging are Facebook, Skype, Hangout, WhatsApp, WeChat, and others. So among those stated above, WhatsApp, has the highest number of users actively engaging in this particular application.
Next is email. This is I think the first service provided by the internet. Electronic mail which is also known as email is also one of the most popular services on the internet which helps to exchange data like text, images and videos. and in 1996 there were more email than postal mail being sent so there are three important features of email first instant communications it instantly sends your message in a matter of seconds number two one-to-one or one-to-many communications so you can send email to one person only or you can send the same email content or message to many people Number three it is free and easily accessible So users are only required to have an internet connection and sign up to an email service provider So some of the most popular email providers Email service providers are Gmail Microsoft Outlook AOL MSN and Yahoo mail now we're going to look into the advantages of email so first is it is the cheapest and the fastest mail service so because it's free and can take a little time to send a message that's why second we can send any form of data like text image videos through email okay but do you know that from the year when email was created up to the late 1980s messages are in text format not until in 1991 when multi-purpose internet mail extension online was proposed by bell communication as a standard in order to expand limited capabilities of email It allows users to exchange different kinds of data files on the internet such as audio, video, images, application programs. Next is that same email can be sent to more than one person.
Well, yes, same email can be sent to many recipients. Next is email can be read from anywhere in the world. Okay, so as long as you have the internet connection, your email address, your password, you're good to go. For the disadvantages of email, first we have that the recipients need to access the internet in order to receive email.
Yes, without internet, you cannot send nor receive emails. and it is only one of the downsides of email. because internet during 1980s to 1990s and early 2000s are so expensive next is viruses are easily spread by email attachments okay yes there are there are those emails with attachment that goes into your inbox and once you click that attachment the virus runs into your computer next one is phishing Sending an email to a user falsely claiming to be a legitimate company to scam the user into providing information such as personal information and bank account numbers on a bogus website.
So the details will then be used for identity theft. Okay, next is there is no guarantee that Mail will be read until the user logs on and checks their email. Next is spam. Spam is unsolicited or unwanted email.
The third internet service under communication is video conferencing. Video conferencing is internet services where two or more people located in separate geographical locations can communicate with each other. do live audio video communication so it is a real real-time conferencing services of the internet so for proper functioning of the video conference it may require a high bandwidth of the internet at the sender and receiver sides the purpose of live video conferencing services is essential to emulate face-to-face conversations over the internet So here are the basic requirements for performing good video conferencing. First, you have to have good internet connection at the center and receiver sides.
Next is webcams on both sides, computer screens, TV projector for displaying video, good video conferencing software like WebEx meeting, click meeting, zoom. blue jean skype google meeting etc okay so i have tried looking for an online job and employers do require job seekers to to communicate with them through skype or whatsapp so what are the pros and cons of video conferencing here is a list of some of the advantages and disadvantages of the video conferencing Now, I need you to think of additional pros and cons, two of each, which I haven't mentioned in the lecture. So share your ideas in the comments section below. Thank you!