Mind Map Gallery Communications And Network

Communications And Network

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Edited at 2020-10-08 12:25:27

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Communications And Network

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Outline

Communications And Network

Wireless TransmissionMedia

Cellular radio

Microwaves

A communications satellite

Communications channel

ฺBandwidth

Latency

Transmission

Broadband

Home Networks

connect to the internet

share a single high-speedinternet connection

Access file and programs onother computer

Share peripherals

Play multi-player games

Connect game consoles tothe internet

Subscribe to and use VolP

Communications Devices

DSL modem

Cable modem

Wireless moden

uses the cell phone networkto connect to the internet

Network card

A router connects multiplecomputer or other routers

Communications over thetelephone network

Dial-up lines

Dedicated line

ISDN line

DSL

FTTP

T-carrier

ATM

Communications Software

Help users establish aconnection to another computeror network

Manage the transmission ofdata, instructions, andinfornation

Provide an interface for usersto communicate with oneanother

Communication

Sending device

Communication channel

Receiving device

Network CommunicationsStadndards

Ethernet

a network standard that specifies nocomputer controls when data can betransmitted

Token ring

the standard specifies that computers anddevices on the network share or pass aspecial signal

TCP/IP

A network standard that defines howmessages are routed from one end of anetwork to another

Wi-Fi

Bluetooth

UWB

Specifies how two UWB devices useshort-range radio signals tocommunicate

IrDA

Transmits data wirelessly viainfrared light waves

RFID

Uses radio signals to communicate with atag placed in or attached to an object,animal, orperson

WiMAX

WAP

Uses of computercommunications

Blogs

Chatroom

E-mail

Fax

Internet

Web

Wikis

Video conferrencing

Instant messaging

ETC.

Network

Advantages of network

Sharing hardware

Facilitating communications

Sharing data and information

Sharing Software

Transferring funds

A local area network (Lan)

A wireless Lan

A wide area network

P2P

An internet network on whichuser access each other's harddisk

Objectives Overview

Discuss the purpose of thecomponents required forsuccessful communication

Describe the uses ofcomputer communication

differentiate among a starnetwork , bus network , and ringnetwork

describe the various networkcommunication standard