2. THERE ARE FOUR TYPES OF
NETWORK
• 1ST
• PERSONAL AREA NETWORK(PAN)
• 2ND
• LOCAL AREA NETWORK (LAN)
• 3RD
• METROPOLITIAN AREA NETWORK(MAN)
• 4TH
• WIDE AREA NETWORK (WAN)
3. BRIEFLY DESCRIPTION OF
NETWORKS
• PERSONAL AREA NETWORK (PAN)
A PERSONAL AREA NETWORK (PAN)IS
A NETWORK COMMUNICATING
DEVICES (COMPUTERS , PHONE ,
MP3/MP4 ,PLAYER , CAMERAS , ETC.)
IN THE PROXIMITY OF AN INDIVIDUAL.
4. LOCAL AREA NETWORK(LAN)
• A LOCAL AREA NETWORK (LAN) IS A
COMPUTER NETWORK THAT SPANS A
RELATIVELY SMALL AREA .MOST LANs
ARE CONFINED TO A SINGLE BUILDING
OR A GROUP OF BUILDINGS. HOWEVER,
ONE LAN CAN BE CONNECTED TO
OTHER LANs OVER ANY
DISTANCE VIA
TELEPHONR LINES OR
RADIO WAVES USING
ETHERNET OR CO-AXIAL
CABLES.
5. METROPOLITIAN AREA
NETWORK
(MAN)
• A METROPOLITIAN AREA NETWORK
(MAN) IS A NETWORK THAT
INTETCONNETS USERS WITH
COMPUTER RESOURCES IN A
GEOGRAPICAL AREA OR A REGION
LARGER THAN THAT COVERED BY
EVEN A LARGE LAN , BUTSMALLER
THAN THE AREA COVERED BY A WIDE
AREA NETWORK (WAN).
6. THE TERM WIDE AREA NETWORK
(WAN) USUALLY REFERS TO A
NETWORK THAT COVERS A LARGE
GEOGRAPICAL AREA. IT INCLUDES
PUBLIC PACKET NETWORKS
CORPORATE NETWORKS , MILITARY
NETWORKS , BANKING NETWORK ,
STOCK BROKERAGE NETWORKS AND
AIRLINE RESERVATION NETWORKS .