3/15/2023 0 Comments Instant messagingThe window that each of you sees on your respective computers expands to include a scrolling dialog of the conversation. The other person gets your instant message and responds.All communication is directly between the two clients. In other words, the server is not involved at this point. Because your client has the IP address and port number for the computer of the person that you sent the message to, your message is sent directly to the client on that person's computer.You enter a message and click "send" or hit return to communicate with that person. When your client gets the connection information for a person in your contact list, it changes the status of that person to "online." You click on the name of a person in your contact list who is online, and a window opens that you can enter text into.The server also sends your connection information to the people in your contact list that are signed on. If the server finds any of your contacts logged in, it sends a message back to the client on your computer with the connection information for that user.It then checks to see if any of the users in your contact list are currently logged in. The server creates a temporary file that has the connection information for you and the list of your contacts.It also provides the user with the names of everyone in your contacts list. The client sends the server the connection information ( IP address and number of the port assigned to the client) of the computer you are using. When the server verifies your name and password, you are logged in. If this is your first time on, you can sign up for an account and immediately begin using it. Once the client is connected to the server, you can enter your name and password to log in to the server.It uses a proprietary protocol for communication. The client tries to connect to the server.You install the software and open the client.You go to the download page and get a copy of the free software client for your computer.As a result, it's no wonder Instant Messaging works on both slow and fast internet connections. On average, a whole month of Instant Messaging internet traffic adds up to under 1 megabyte, a tiny amount of space. Instant Messages are tiny while files like movies and audio can be quite large. The reason a direct connection is made is it's more efficient than trying to send every file through the IM servers and means the IM companies don't have to use as much internet bandwidth. Your IM client essentially asks the IM server where your friend is located on the internet and then helps your computer make a direct connection to your friend's computer. Now let's suppose you want to send a file to your friend. As you continue your conversation the messages go back and forth between the clients and servers with very little delay. The message then travels directly to your buddy and a window pops up on his/her machine. When you send a message to your friend it travels from your IM client to the IM server to which you're connected. You'll notice that the statuses of friends automatically change from "Online" to "Away", "Busy" or "Offline" based on whether that person is logged in and using his/her computer. As your friends sign in and out you'll see them appear and disappear from your contact list. Now you'll see a list of your buddies that are currently online. The IM server verifies your username and password and then logs you in. When you start up an IM program, called an IM client, it tries to contact to a particular company's IM server, such as Google or Yahoo. Most IM programs connect to an IM company on the internet that both verifies a particular user's identity, called authentication, and sends information between users. A message takes very little time to reach the other person and it doesn't matter whether that person is next door to you or around the world! As you continue chatting you see a full transcript of your conversation form in the chat window. Instant Messaging allows you to quickly send a message to one or more of your friends over the internet. IM helps people send quick text messages around the world, talk for free on the internet and transfer files, all pretty much instantly. Instant Messaging is one of the fastest growing forms of communication, both at home and at work.
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