File Transfer Protocol (ftp) allows users to transfer files and documents from one computer to another. There are a few different software programs that will make this process quite simple. If you are designing a website you can use ftp to update your website.
Computer users can also use an ftp program to download files and software off the internet. Many companies and universities offer ftp sites that contain software which can be downloaded and used on your computer. A search for 'ftp' will display dozens of ftp programs that can be used to download software.
Internet Relay Chat (irc) allows users to participate in real-time discussions with other users through the Internet. A user logs on to an irc site and then types messages and replies to others messages as they are written. Often an irc discussions has a topic and users will join to discuss this topic. Other irc discussions are free flowing and regardless of how centred the discussion is it can take some time to sort out the different threads of discussion in a busy irc. They are also used for online conferences with a famous or knowledgeable person contributing their time to answer questions and present information.
Along the same theme are online game sites where Internet users can compete against other users on the Net.
Instant Messaging software, such as ICQ 
and MSN 
allows users to find friends and contacts through the Internet and communicate
with them in real time. Users maintain a list of contacts which the software
will notify when they are online and contact is available. To use an instant
messaging service it is necessary to have and register software available
on the Internet. Instant messaging allows you to chat, send messages
and files and various other features but only with people you choose.
Often the software and registration is free.
Some services also provide the ability to connect a microphone to your computer and talk to your contact. Your contact can talk back using their account and software which you can hear using the computer's speakers or an ear attachment.
Updated November 22, 2007
