Paraphrased from the first few minutes of Lecture 1A | MIT 6.001 Structure and Interpretation, 1986
First of all, it's not a science.
It's not about computers in the same sense that physics is not about a particle accelerator. And Biology is not really about microscopes and petri dishes. And it's not about computers in the same sense that geometry is not really about using surveying instruments.
In fact, there are a lot of commonalities between computer science and geometry. Geometry, first of all, is another subject with a lousy name. Geometry comes from Gaia which means the earth and metron which means to measure. Geometry originally meant measuring the earth or surveying. The reason for that is that 1000's of years ago the Egyptian priesthood developed the rudiments of geometry in order to restore the boundaries of fields that that were destroyed in the annual flooding. To the Egyptians who did that, geometry really was about surveying instruments.