2. WIRED NETWORKING
A WIRED NETWORK IS ONE IN WHICH ALL THE COMPONENTS ARE
CONNECTED WITH NETWORK CABLES. ITS TYPES ARE –
CO-AXIAL CABLE, ETHERNET CABLE, OPTICAL FIBER CABLE
3. COAXIAL CABLE
COAXIAL CABLE, OR COAX IS A TYPE OF CABLE THAT HAS AN INNER CONDUCTOR SURROUNDED BY A
TUBULAR INSULATING LAYER, SURROUNDED BY A TUBULAR CONDUCTING SHIELD.
ADVANTAGE - USED FOR BROAD BRAND TRANSITION
DISADVANTAGE - HIGH WEIGHT AND THICKNESS
ETHERNET CABLE
ETHERNET IS A FAMILY OF COMPUTER NETWORKING TECHNOLOGIES FOR LOCAL AREA NETWORKS (LANS)
AND METROPOLITAN AREA NETWORKS (MANS). IT WAS COMMERCIALLY INTRODUCED IN 1980 AND FIRST
STANDARDIZED IN 1983 AS IEEE 802.3 AND HAS SINCE BEEN REFINED TO SUPPORT HIGHER BIT RATES
AND LONGER LINK DISTANCES.
ADVANTAGE –LESS POWER CONSUMPTION
DISADVANTAGE –THE PC SHOULD HAVE AN ETHERNET ADOPTER CARD
4. OPTICAL FIBER CABLE
AN OPTICAL FIBER CABLE IS A CABLE CONTAINING ONE OR MORE OPTICAL FIBERS THAT ARE USED TO
CARRY LIGHT. THE OPTICAL FIBER ELEMENTS ARE TYPICALLY INDIVIDUALLY COATED WITH PLASTIC LAYERS
AND CONTAINED IN A PROTECTIVE TUBE SUITABLE FOR THE ENVIRONMENT WHERE THE CABLE WILL BE
DEPLOYED
ADVANTAGE - LIGHT WEIGHT, HIGH DATA TRANSFER SPEED
DISADVANTAGE –NEED SPECIAL CARE, HIGH COST OF INSTALLATION
5. WIRELESS NETWORK
A WIRELESS NETWORK IS ANY TYPE OF COMPUTER NETWORK THAT USES
WIRELESS DATA CONNECTIONS FOR CONNECTING NETWORK. ITS TYPES ARE-
BLUETOOTH, INFRARED, WI-FI.
6. BLUETOOTH
BLUETOOTH IS A WIRELESS TECHNOLOGY STANDARD FOR EXCHANGING DATA OVER SHORT DISTANCES FROM FIXED AND MOBILE
DEVICES, AND BUILDING PERSONAL AREA NETWORKS. INVENTED BY TELECOM VENDOR ERICSSON IN 1994.
INFRARED
INFRARED IS INVISIBLE RADIANT ENERGY, ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT,
EXTENDING FROM THE NOMINAL RED EDGE OF THE VISIBLE SPECTRUM AT 700 NANOMETERS TO 1 MM. MOST OF THE THERMAL
RADIATION EMITTED BY OBJECTS NEAR ROOM TEMPERATURE IS INFRARED.
WI-FI
WI-FI IS A LOCAL AREA WIRELESS COMPUTER NETWORKING TECHNOLOGY THAT ALLOWS ELECTRONIC DEVICES TO NETWORK, MAINLY
USING THE 2.4 GIGAHERTZ (12 CM) UHF AND 5 GIGAHERTZ (6 CM) SHF ISM RADIO BANDS.THE WI-FI ALLIANCE DEFINES WI-FI AS ANY
"WIRELESS LOCAL AREA NETWORK" (WLAN) PRODUCT BASED ON THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS' (IEEE)
802.11 STANDARDS
