Understanding Adware - Spyware And Viruses | What Differences?

Adware - Spyware And Viruses 
Adware, spyware and notebook viruses share approximately similarities, lone of which is with the intention of all three are major nuisances pro notebook users. Let's differentiate the three.

Spyware is software with the intention of does not intentionally destroy your notebook.

Spyware has been designed to track and confirmation the types of websites you visit