How to configure a Cisco device to remotely access it ?

What i am about to list are the basic of what is needed to access a Cisco device remotely. A Cisco device has to have 3 of the following settings for it to be managed remotely :

• an IP address
• The privilege mode has to have a password
• the vty port has to be configured 

1- IP address config :

(config)#interface "interface-name"
(config-if)#ip address "address" "subnet-mask"
(config-if)#no shutdown

2- set a password on the priviledge mode

(config)#enable secret "string"        OR     (config)#enable password "string"

3- Basic VTY port configuration

(config)#line vty 0 4
(config-line)#password "string"
(config-line)#login

That is it. Once done set the TCP/IP properties of your PC, ping the Cisco device and then access it from your PC.
While connected remotely, it is a good thing to be seeing LOGS on the console line which is  impossible unless you type the following command at the privilege mode :

#terminal monitor