Defference between laptop and notebook

Laptops and notebooks are basicly the same thing. Netbooks however are not. Netbooks generally have Atom type CPU's and small HDD and not much RAM. Your system is a laptop/notebook.
 
Your Presario is both, they are actually the same thing! You probably mean Netbook. No it's not a netbook, a netbook is one of those tiny laptops with no Optical Drive (DC/DVD).
 
Agreed - they're both jargon for a portable computer. Also agreed that a netbook is different - categorized by lower performance, battery friendly and usually very inexpensive
 
Yeah, marketing people probably came up with the term "notebook" to make people think that a "notebook" is smaller and lighter than a "laptop" 10 or so years ago.