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CHAPTER 10:COMMUNICATING DIGITAL CONTENT:WIRED AND WIRELESS NETWORKS AND…
CHAPTER 10:COMMUNICATING DIGITAL CONTENT:WIRED AND WIRELESS NETWORKS AND DEVICES
1.COMMUNICATIONS
DIGITAL COMMUNICATIONS
PROCESS IN WHICH 2 OR MORE COMPUTERS OR DEVICES TRANSFER DATA,INSTRUCTIONS AND INFORMATION
SENDING DEVICE-TRANSMISSION DATA-RECEIVING DATA
SENDING AND RECEIVING DEVICES-SERVERS,DESKTOPS,LAPTOP,TABLETS,SMARTPHONES AND HEADSETS
TRANSMISSION MEDIA -CONSISTS OF PHONE POWER LINE S,CABLE TELEVISION
2.NETWORK
COLLECTION OF COMPUTERS AND DEVICES CONNECTED TOGETHER VIA COMMUNICATIONS DEVICE AND TRANSMISSIONS MEDIA
ADVANTAGES
FACILITING COMMUNICATIONS
SHARING HARDWARE
SHARING DATA AND INFORMATIONS
SHARING SOFTWRE
TRANSFERRING FUNDS
NETWORKS
(LOCAL AEA NETWORK)-LAN
NETWORK THAT CONNECTS COMPUTERS AND DEVICES IN A LIMITED GEOGRAPHICAL AREA
WLAN(WIRELESS LAN)
LAN THAT USES NO PHYSICAL WIRES
METROPOLITAN AREA NETWORK(MAN)
CONNECT LANs IN A METROPOLITAN AREA
WORLDWIDE AREA NETWORK(WAN)
NETWORKS THAT COVERS A LARGE GEOGRAPHIC AREA
PERSONAL AREA NETWORK(PAN)
NETWORK THAT CONNECTS COMPUTER AND DEVICES IN AN INDIVIDUAL'S
WORKSPACES USING WIRED AND WIRELESS TECHNOLOGY
CONFIGURATIONS OF COMPUTERS,DEVICES AND MEDIA ON A NETWORK IS ALSO CALLED NETWORK ARCHITECTURE
EXAMPLE
CLIENT/SERVER NETWORK
PEE-TO-PEER NETWORK
HOME NETWORKS
CONNECTS MULTIPLE COMPUTERS AND DEVICES TOGETHER IN A HOME NETWORK
3.COMMUNICATION SOFTWARE CONSIST OF PROGRAMS AND APPS
HELP USERS TO ESTABLISH A CONNECTION TO ANOTHER COMPUTER,MOBILE DEVICE OR NETWORK
MANAGE THE TRANSMISSION OF DATA ,INSTRUCTIONS AND INFORMATIONS
PROVIDE AN INTERFACE FOR USERS TO COMMUNICATE WITH ONE ANOTHER
5.COMMUNICATIONS LINES
FTTP
T-CARRIER
DSL
ATM
155 MPBS TO 622 MPBS,CAN REACH 10 GBPS
CABLE
256 KBPS TO 100 MPBS OR HIGHER
ASDL
TYPE OF DSL THAT SUPPORTS FASTER DOWNSTREAM RATES THAN UPSTREAM RATES
4.NETWORK COMMUNICATIONS STANDARDS AND PROTOCOLS
TOKEN RING
STANDARD SPECIFIEES THAT COMPUTERS AND DEVICES ON THE NETWORKS SHARE OR PASS A SPECIAL SIGNAL(TOKEN)
TCP/IP
NETWORK PROTOCOL THAT DEFINES HOW MESSAGES(DATA) ARE ROUTED FROM ONE END OF A NETWORK TO ANOTHER
ENTHERNET
NETWORK STANDARD THAT SPECIFIES NO CENTRAL COMPUTER OR DEVICE ON THE NETWORK(NODES)SHOULD CONTROL WHEN DATA CAN BE TRANSMITTED
6.COMMUNICATIONS DEVICES
ANY TYPE OF HARDWRE CAPABLE OF TRANSMITTING DATA,INSTRUCTIONS AND INFORMATIONS BETWEEN A SENDING AND A RECEIVING DEVICE
BROADBAND MODEM SENDS AND RECEIVES DATA AND INFORMATIONS TO AND FROM A DIGITAL LINE
CABLE MODEM
DSL MODEM
WIRELESS MODEM
USES MOBILE PHONE PROVIDER'S NETWORK TO CONNECT TO THE INTERNET WIRELESSLY FROM A COMPUTER OR MOBILE DEVICE
ALLOW USERS TO ACCESS THE INTERNET WIRELESSLY USING A MOBILE SEVICE PROVIDER'S NETWORK.SOME OF MANUFACTURERS REFER TO THE TYPE OF WIRELESS MODEM
WAP-WIRELESS ACCESS POINT
CENTRAL COMMUNICATIONS DEVICE THAT ALLOWS COMPUTERS AND DEVICES TO TRANSFER DATA WIRELESSLY AMONG THEMSELVES OR TO A WIRED NETWORK
ROUTER
CONNECTS MULTIPLE COMPUTERS OR OTHER ROUTERS TOGETHER AND TRANSMITS DATA TO ITS CORRECT DESTINATION ON A NETWORK
BROADBAND ROUTER
BROADBAND WIRELESS ROUTER
WIRELESS ROUTER
MOBILE BROADBAND WIRELESS ROUTER
THROUGH MOBILE BROADBAND WIRELESS ROUTER
USERS CAN CREATE A MOBILE HOT SPOT VIA 3G OR 4G MOBILE BROADBAND INTERNET SERVICE
NETWORK CARD
ENABLES A COMPUTER OR DEVICETHAT DOES NOT HAVE BUILT-IN NETWORKING CAPABILITY TO ACCESS A NETWORK
AVAILABLE IN A VARIETY OF STYLES
HUB OR SWITCH
A DEVICE THAT PROVIDES A CENTRAL POINT FOR THE CABLES IN A NETWORK.
7.TRANSMISSION MEDIA
CARRIES ONE OR MORE COMMUNICATIONS SIGNALS
BROADBAND
MEDIA TRANSMITS MULTIPLE SIGNALS SIMULTANEOUSLY
BANDWITCH
THE AMOUNT OF DATA,INSTRUCTION AND INFORMATION THAT CAN TRAVEL OVER TRANSMISSION MEDIA SOMETIMES
LATENCY
THE TIME IT TAKES A SIGNAL TO TRAVEL FROM ONE LOCATION TO ANOTHER ON A NETWORK
PHYSICAL TRANSMISSIONS MEDIA
TWISTED -PAIR CABLE
COLOR CODED FOR IDENTIFICATION
LANDLINE PHONE NETWORKS AND LANs OFTEN USES THIS CABLE
COAXIAL CABLE
DATA TRAVELS THROUGH COPPER WIRE
COMPUTER CONNECTED TO A MODEM,WHICH ALSO IS CONNECTED TO THE CATV NETWORK THROUGH THIS CABLE
FIBER-OPTIC CABLE
CONISISTS OF HAIR-THIN STRANDS OF GLASS OR PLASTIC THAT CARRY DATA AS PULSES OF LIGHT
WIRELESS
BROADCAST RADIO
WIRELESS TRANSMISSION MEDIUM THAT DISTRIBUTES RADIO SIGNALS THROUGH THE AIR OVER A LONG DISTANCES
CELLULAR RADIO
FORM OF BROADCAST RADIO THAT IS IN THE WIDE USE FOR MOBILE COMMUNICATIONS
MICROWAVE
RADIO WAVES THAT PROVIDES A HIGH-SPEED SIGNAL TRANSMISSION
COMMUNICATION SATELLITE
SPACE STATION THAT RECEIVE MICROWAVE SIGNALS FROM AN EARTH-BASED STATION ,AMPLIFIES IT,AND BOADCASTS THE SIGNALS OVER A WIDE AREA TO ANY NUMBER OF EARTH-BASED STATIONS
PLACED ABOUT 22,300 MILES ABOVE THE EARTH'S EQUATOR
GPS
(GLOBAL POSITIONING SYSTEM) IS A NAVIGATION SYSTEM THAT CONSISTS OF ONE OR MORE EARTH-BASED RECEIVERS THAT ACCEPT AND ANALYZE SIGNALS SENT BY SATELLITE IN ORDER TO DTERMINE THE RECEIVER'S
GEOGRAPHICAL LOCATION