4.2 Uses of computer communication

FAX MACHINE (FACSIMILE) OR COMPUTER FAX MODEM

The fax machines are really just special-purpose computers, which conduct a conversation over the analogue telephone system.
The number of bits of information needed to represent a faxed page varies according to the pattern of black on white on the page. However, on average around 200 kbits are sufficient for one page.

INTERNET

With wired connections, a computer or device physically attaches via a cable or wire to a communications device, such as modem, that transmits data and other items over transmission media to the internet.
The Internet has become the best-known specialized mechanism for providing links between computers located in all continents of the world.

Email (short for electronic mail) is the transmission of messages and files via a computer network.
We use an email program to create, send, receive, forward, store, print, and delete email messages. An email message can be simple text or can include an attachment such as a document, a graphic , an audio clip or a video clip.

CHAT ROOMS

A chat is a real-time typed conversation that takes place on a computer or devices with many other online users.
Anyone in the chat room can participate in the conversation, which specific to a particular topic.

VOIP

VoIP, short for Voice over IP (Internet Protocol), enables users to speak to other users via Internet connection.
To place an internet phone call, we need a broadband internet connection, a microphone, and speaker such as Skype. VoIP uses the internet instead of public switched telephone network to connect a calling party.

FTP

It permits file uploading and downloading to and from other computers on internet. Uploading is the process of transferring files from computer or device to a server on the internet to your computer or device.

VIDEO / AUDIO CONFERENCING

Connection between two or more parties on computers communicate over a two-way transmission using video and audio signals via the Internet.
Videoconferencing utilizes computer software and hardware (usually a microphone and webcam), or some other device capable of transmitting both signals, such as a videophone.
Use in educational instruction as long as the teachers must have microphone, can have camera. Ideally end users have microphone (camera not essential) for synchronous communication. Transmitted to & received from any computer in any location that has Internet connection (broadband desirable for effective use).

USES OF COMPUTER COMMUNICATION

4.2 Uses of computer communication: Event