What is Router and Switch and how they work?

Router is the computer which contain the hardware and software , have different routers example : Cisco IOS or Juniper Networks JUNOS and JUNOS .
The task of a router is the destination DELIVERY INFORMATION
In the router there are some dismountable RAM , NVRAM , etc. ... ( RAM serves for storing things at the time when it
working router are configured or something , and then if we preserve forever
put data in NVRAM .
Powerful routers contain several processors and integrated circuits for ASIC applications .
Example , chassis systems like Nortel MERS - 8600 or ERS - 8600 have multiple ASIC in each module and allow
the use of multiple technologies LAN , MAN , METRO , and WAN as well as other uses , depends on the user.

We simpler routers that have lower prices and with powerful routers that are priced higher .
So simple routers used in those countries where cost is important , but mostly in
family .
Routers connected to two or more logical subnete .
Switchi located in layer 3 of the OSI Models often used as a router , but switch is a term
general without a defined technical definition .

Roter work in two ways .

Control Panelli , router " learns " its external interface with suitable to rrugëzuar
a specific package to a specific destination .
Panelli of routing , is responsible for the process of sending packets received from an interface
logic in a logical outgoing interface .

No cable routers ( Wireless Routers )
A wireless router has an integrated AP ( Access Point ) with IP and ethernet switch . router
Integrated Access Point connects integrated Ethernet and switchin together, and allows for
other external devices connected to the RJ45 cable p.sh a cable modem or a DSL modem . a
wireless router , so convenient , allows all three devices ( mainly Access Point and
router ) .

When We fasten our two p.sh same device switch with RJ45 connector switch CROSS and use different devices p.sh Switch and Router street use .

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