How to root android device

With root on your android device, you may have full permission in running your application.  So far, below are 2 applications that i have ever used. One requires windows desktop called  and the other one is not PC dependent called Towel Root.

It's called Nexus Root Toolkit under WUGFRESH

at http://www.wugfresh.com

Supported devices :

Galaxy Nexus: GSM Models (both yakju and non-yakju builds) · Galaxy Nexus: CDMA/LTE Verizon Models
· Galaxy Nexus: CDMA/LTE Sprint Models
· Nexus S: Worldwide, i9020t and i9023 Models
· Nexus S: 850MHz, i9020a Models
· Nexus S: Korea, m200 Models
· Nexus S 4G: d720 Models
· Nexus 7: Asus Tablet
· Nexus 7 3G: Asus Tablet
· Nexus 7 v2 (2013): Asus Tablet
· Nexus 7 v2 (2013) LTE: Asus Tablet
· Nexus 10: Samsung Tablet
· Nexus 4: LG Phone
· Nexus 5: LG Phone
· Nexus 9: HTC Wifi Tablet
· Nexus 6: Motorola Phone

Another google store application called " Towel Root", you can straight away root your device in a real faster way.