Lesson 5- Networks

the technology associated with the electronic transmission of void, fax or other information between distant parties

a group of two or more computers linked together

Process of sending and receiving data or information

transmission of data from one location to another

Process in which one computer sends or transfer data, instructions and information to another computer

Types of Interchange

Process of transmitting and receiving of voice, video or data in a form that could be sent and / or received by different communication devices over a long distance channel

Communication Channel Used in Transmitting Signals

used to TRANSMIT data, instructions or information to other devices connected in a network

Used to convert data, instructions or information into a form that could be TRANSMITTED through a channel

used as a MEDIA or path on which signals travel to different devices connected to the network

used to convert data, instructions or information into a form that could be RECEIVED by the receiving devices

computers accept the transmitted data, instructions or information from different transmitting communication devices

Network advantages

Network Disadvantages

Network types

Network architectures

Types of hardware capable of sending data, instruction or information between transmitting and receiving devices

convert analog signals to digital and vice-versa.

Enables data transmission over analog telephone lines

allow digital transmission over telephone copper wires

DSL

ISDN

Uses coaxial cable to send and receive data

Many mobile devices, such as a PDA, contain a wireless modem

Each computer on a network must have

Software and hardware linking two different types of networks that use different protocols

An intelligent device that directs network traffic

Connects wireless communications devices together to create a wireless network

A place of convergence where data arrives from one or more directions and is forwarded in one or more other directions

Used to transfer data from one computer to another requires some type of link through which the data can be transmitted

the link that allows data be transferred from one computer to another

the transmission capacity of a communication channel

with high bandwidth media such as cable, fiber, DSL

using standard telephone line

moved or switched from one wire or frequency to another

a device located at the telephone company’s central office that established a link between a sender and receiver of data communications

Made up of different materials or technique capable of carrying one or more signals transmitted from one device to another

Types of transmission media

Physical transmission cable

Wireless Transmission Media

the geometric arrangement of how a network is set up and connected

Types of Network Topologies

Set of rules and procedures from transmitting data between two or more devices

Provide features such as administration, file management, print, communications, security, database, management, etc.