what is the network??
Network
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To anderstand the role that computers play in a networking system, consider the internet. Internet connections are essential for businesses and education. Careful planning is required to build a network that will connect tothe internet. Even for an individual personal computer (PC ) to connect to the internet, some planning and decisions are required. Computer resources must be considered foe internet conection. This includes the type of device that connects the PC to the internet, such as a network interface card ( NIC ) or modem. Protocols, or rules, must be configured before a computer can connect to the internet. Proper selection of a web browser is also imortant.
Requirements for internet connection.
The internet is the largest data network on eart. The internet consists of many large and small networks that are interconnected. Individual computers are the sources and destinations of information through the internet. Connection to the internet can be broken down into the physical connection, the logical connection, and applications.Requirements for internet connection.
A physical connection is made by conneting an adapter card, sach as a modem or a NIC, from a PC to a network. The physical connection is used to transfer signals between PCs wihin the local area network ( LAN ) and to remote devices on the internet.
Many networking divices are spescal purpose computers, with many of the same components as general purpose PCs.
A computer must work properly before it can be used to access information such as Web-based content. This will require you to troubleshoot basic hardware and software problems. Therfore, you must be familiar with the follow small, discreet PC component. You sould also be pamiliar with the following PC subsystems :
1. Translator
2. Integrated circuit
3. Resistor
4. Capacitor
5. Connector
6. Light emitting diode ( LED )
7. Printed circuit board ( PCB )
8. CD-ROM drive
9. Central processing unit ( CPU )
10. Hard disk drive
11. Microprocessor
12. Motherboard
13. Bus
14. Random-access memory ( RAM )
15. Read-only Memory ( ROM )
16. Expansion slot
17. Power supply
18. Backplane
19. Network interface card ( NIC )
20. Video card
21. Audio Card
22. Parallel port
23. Serial port
24. Mouse port
25. USB port
26. Firewire
27. Power card
Think of the internal components of a PC as a network of devices that are all attached to the system bus.
