Howling:Isomorphic Controls - Sonic Screwdriver

I am writing an article for an online blog and one of the subjects is Isomorphic controls, and I suddenly got to thinking about the Doctors Sonic screwdriver. When ever I see diagrams of River Songs Screwdriver, that she was given by the future Doctor, it mentions a User Recognition Ring. I am assuming that this is some long winded way of saying Isomorphic Controls like the Masters Laser Screwdriver in The Sound of Drums and Last of the Time Lords

Thoughts?!

Mickie Newton ☎  18:00, August 21, 2014 (UTC)