Dennis Chap 09 Data Communication

By:
Amanta Dennis Saputra
(Diploma in Marketing)

Process in which two or more devices transfer data, instruction, and information.

Wireless Messaging Services
Wireless Internet Access Point
Cybercafés
Global Positioning System
Groupware
Voicemail
Collaboration
Web Service

Is a collections of computers and devices connected together via communications devices and transmission media.

Facilitating communications
Sharing Hardware
Sharing Data and Information
Sharing Software
Transferring Funds

LAN ( is a network that connects computers and devices in a limited geographical area, such as home, office building, etc)
WLAN ( is a LAN that uses no physical wires)
MAN (is a High-speed network that connects local area network in a metropolitan area, such as city or town)
WAN (is a network covers a large geographical area, such as a city, a country, or the world)

Dial-Up Lines (temporary connection that uses one or more analog telephone lines for communications)
Dedicated Lines (type of always-on connections that is established between two communications devices)
ISDN Lines (faster than Dial-Up)
DSL (fast speeds on existing standard copper telephone wiring)
FTTP ( uses fiber-optic to provide extremely high-speed Internet access to users physical permanent locations)
ATM (a service that carries voice, data, video, and multimedia at very high speeds)

Dial-up Modems (communications device that can convert digital signals to analog and analog signals to digital signals)
Digital Modems (communications device that sends and receives data and information to and from a digital line)
Wireless Modems
Network Cars (communications device that enables a computer or device that doesn’t have built-in networking capability to access a network)
Wireless access point (central communications device that allows computer and devices to transfer data wirelessly)
Routers (communications devices that connects multiple computers or other routers together and transmits data to its correct destination on a network)

Connect to the Internet at the same time
Share a single high-speed Internet connection
Access files and programs on the other computers in the house
Share peripherals such as a printer, scanner, external hard disk
Play multiplayer game with players on others computer in the house
Connect game consoles to the Internet

Ethernet (network standard that specifies no central computer or device on the network should control when data can be transmitted)
Power line Cable Network (network that uses the same lines that bring electricity into the house)
Phone line Network (an easy-to-install and inexpensive network that uses existing telephone lines in the home)

1. What is communication in computer ??
2. What is communication device ??

Dennis Chap 09 Data Communication

by sharing notes123 on Dec 17, 2009

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