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

Thoughts?!

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