Router components
Like a computer they are composed of:
- Microprocessor to run the IOS
- RAM to store data, run programs and buffer data.
- NVRAM to store instruction for performing the self test of the device. It also contain a subset of of the l'IOS.
- Flash memory: like an NVRAM that can be erase and rewrite electronically (used like PC use disk storage). The copy of IOS the router run is store on it.
- Network Interfaces: Primary for the router.