CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I was pretty sure the answer was NO , and hence google gears, adobe AIR, etc. If I was right, then how does http://tiddlywiki.com work? It is persistent and written in javascript. It is also just a single HTML file that has no external (serverside) dependencies. WTF? Where/how does it store its state? Source: Tips4all