Here are a few thoughts, as I've studied this issue for many years. In fact I have a presentation I give on this subject as part of the ACM distinguished lecturer program and the IEEE Computer Society's distinguished visitor program. 1) There actually have been academic programs called computer science engineering, but the name never caught on.
The color black represents strength, seriousness, power, and authority. Black is a formal, elegant, and prestigious color. Authoritative and powerful, the color black can evoke strong emotions and too much black can be overwhelming. In heraldry, black is the symbol of grief.
A bull represents power, authority or brute strength. Being white indicates purity or singularity of purpose. Depending on what your bull was doing this could be something you need to do yourself, if it was passive it could be a call to take the bull by the horns and just do it. (whatever IT is)