Ok I have to google all these things cos I have no idea what they are. Very briefly, if you don't mind, what are the following:
Atomisers
Cartomisers
Clearomisers
tanks
Atomisers - http://www.gotvapes.com/images/hybrid15.png
Cartomisers - http://www.misthub.com/wp-content/uploads/2013/12/break-downcartomizer-design.jpg
Clearomisers - - http://godofsteam.files.wordpress.com/2013/07/clearomizers.jpg
tanks - http://wallpoper.com/images/00/21/66/12/military-tank_00216612.jpg
confusing -- carto & atomizer same, but with carto having filler foam inside