There’s an interesting collection here of unevolved famous logos and brands by imjustcreative.
Unevolving a logo to just a series of coloured circles, how many can still be recognised? This study shows how the most simplest of logo and brand designs are often the most recognisable when shed of all detail.
In most cases, each circle represents one letter or one container. So in the case of Orange, a self contained logo, one circle for the orange container and one circle for the wording. Typebased logos like Twitter, FedEx and eBay just have one circle per letter.
For more answers visit his Flickr page.