Walk into a department store these days and you’ll be hit by plethora of portable computers, big and small.  If you’ve ever wondered what the difference is between a netbook, an ultraportable, a subnotebook or just a plain old laptop, then here’s your guide.
The Register have published a funny but nice little flowchart that tells you exactly how to categorise your portable computer.

The funny thing is that the actual term “Netbook” is trademarked by Psion Teklogix, the maker of Psion palmtops and a discontinued product called the netBook.  Recently, they’ve …