Computer:
	CPU
	RAM
	ROM
	storage
Router:
	CPU
	RAM
	ROM	(BIOS, POST)
	NVRAM	(start-up configuration)
	Flash	(IOS - Internetwork Operating System)

Router Modes:
	User mode  (>)
	Privileged mode  (#)
	Global Configuration mode (Config)#
	Setup mode (yes/no)
	RxBoot mode	(password recovery)
	[Interface mode] (config-if)#	

>enable
#disable
#clock set/show clock
#conf t
(Config)#hostname R1
(Config)#enable secret cisco
(Config)#enable password 1234
<>do show run
#show run
(Config)#line vty 0 4
(Config-line)#  login
(Config-line)#  password
(Config)#int fa0/0
(Config-if)#  desc to users
(Config-if)#  ip addr
(Config-if)#  no shut
(Config-if)# end
#copy run start
#reload

11.1.6

>sh ver
> sh ip interface brief
#copy run tftp