A formula or model of corporate logos, popoular in the late 1980's after AT&T broke off from Bell in 1982 and developed a logog that originally, was intended to reference a lighted sphere, but more closely resembled the design of
the Death Star from the Star Wars movies.
The corporate logos for several companies, including NeoData, Centrobe (Now EDS) were among the slew of tech companies to adopt similar abstracted variations of this concept, and in effect, resulted in a bunch death-star like logos. The most famous and enduring of these is AT&T's logo,
of course.