Good summary I can say that the software is the set of instructions that tells through programs that do to your computer. This is divided into two parts: Sistem Software and Application Software.

Programing Software: 

The principal program is the Operating Sistem (OS),  and generates hardware and instructions helps application systems.

Application Software:

- Application business  

- Application personal

- Application entertainment

- Application security

As saerch and find a driver?

-  Depending of hardware and needs.

-  The installation is too easy.