The NVRAM is the primary place a router or switch stores the configuration file which tells the device how to operate.
you can use 2100 when you have a corrupt nvram and your router refuses to boot up
NVRAM
NVRAM
NVRAM
NVRAM
NVRAM
Global configuration
NVRAM, TFTP,Console
NVRAM
NVRAM is that router component in which start up configuration file is stored.
user exec mode
The configuration file is missing from NVRAM