1. Data Communication & Computer Network
Network Components
Cables (wired, wireless ).
Network Operating System (NOS).
Network Interface Card (NIC).
Network Hardware:-
Hubs.
Switches.
Routers.
Gateways.
Access Point.
Repeaters.
Data Communication & Computer Network

2. Network Interface Card
Data Communication & Computer Network

3. Network Classification
Upon the transmission medium( type of connection ):-
1. Point-to-point:
2. Multipoint:
Data Communication & Computer Network

4. 1303330 Data Communication & Computer Network
Point-to-Point
A pair of nodes connected together via dedicated link. PC PC
Link
Television
Point-to-point between television and remote control via IR (infrared) IR
Remote control
Data Communication & Computer Network

5. 1303330 Data Communication & Computer Network
Multipoint
Number of node connected and share a single link. PC PC PC
Link
Mainframe
Data Communication & Computer Network

6. Network Classification
Upon the scale (size):-
PAN (Personal Area Network).
LAN (Local Area Network).
CAN (Campus Area Network).
MAN (Metropolitan Area Network).
WAN (Wide Area Network).
Data Communication & Computer Network

7. PAN (Personal Area Network)
PAN is a short-distance network design to individual user (person).
PAN may be contain:- printer, mobile, computer, wireless printers , PDA, etc.
components of PAN connected together via Bluetooth , USB cable ,IrDA (infrared), etc.
Data Communication & Computer Network

8. 1303330 Data Communication & Computer Network
PAN cont.
Bluetooth
Wireless Printer
IrDA
USB Cable
Scanner
PDA
Data Communication & Computer Network

9. LAN (Local Area Network)
A LAN is a group of node connected together in a small specific area.
LAN may be contain workstations, computers, scanner, printers, servers, etc.
Data Communication & Computer Network

10. 1303330 Data Communication & Computer Network
LAN cont.
Floor 4
………..
Floor 3
…….………..
Floor 2
Floor 1
Data Communication & Computer Network