WHAT IS NETWORKING?
NETWORKING is a connection between two or more devices in order to share resources and information.

NETWORKING DEVICES:

1. End devices: These are networking devices that can send or recieve information.
example of end devices include: PC,laptop,server,printer,TV,wireless tablet,smart device/phone,analog phone.

End devices can be classified into:

i. Client: This refers to dependent end devices on a network.eg laptop,wireless tablet.
ii. Work station: This refers to an end device that has complete resources/does not share network resources.eg an office desktop would be considered a workstation so long as it is connected to a network and its not sharing files or printers.
iii. Server: A server is an end device that provides services to clients.A server is computer designed to process requests and deliver data to clients over a network.

2. Hub:

A hub is an unintelligent network device that connects more than one end devices together.
Hubs are multiport devices,they forward frames to all ports connected to it.All ports in a Hub belong to the same Collision Domain.

3. Switch:

A switch is an intelligent multiport device that connects different hosts or network devices together.A switch is used to break up collision domain.A switch is intelligent because it has what is called a MAC(Media Access Control) address table. MAC address is the physical address of every machine on the network.

4. Routers:

A router is a network device used for internetwork communication,it provides connection to WAN sevices.At router level we use ip address.
Functions of Routers
i. Packet Switching
ii. packet filtering
iii. internetwork communication
iv. Path selection

5.Modem(Modulator demodulator)

6. Cable:There are different types cables we'll discuss them in one of the following chapters


on the Next thread, we will discuss types of networks
PIC1:Cisco symbol for Hub
pIC2:Cisco Symbol for Switch
PIC3:Cisco Symbol for router
PIC4:Cisco symbol for modem

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