how to reset an iPhone or ipod touch

To be able resetear our cell phone iPhone as that we have had problems with, problems as for example in case an application does not answer, or simply walk mas slowly of the normal thing we must do the following thing:
 - We must press simultaneously the following buttons Home and the top button during approximately 10 seconds, until in our cell phone iPhone there appears Apple's logo (the apple).

 Once done this already will be reseteado our cell phone iPhone.