As Divya mentioned everything is digitized. Computer science will help you to applying your knowledge for Bioinformatics or computational biology. You can make use of programming skills (using java, python, Bioperl etc) to design software which can be used in biological research. With the growing need and applications of Data Science in Biology, now it's easy to store, analyze and interconnect the information generated manually. Bioinformaticians help in designing software & online databases with which the above-mentioned tasks can be achieved with ease.
Another interesting application of computer science in biology can be simulating the cellular processes like vesicular trafficking, signaling, and cell migration. which will help us explain these processes with a visual approach.
I hope this answer helps you get some basic idea about how important & indispensable computer science has become in the field of Modern Biology.
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