Computer Science is the most transformative science of this era. On one hand it is grounded in theoretical foundations rooted in mathematics and philosophy and on the other hand it has given rise to the very widely practiced discipline which engineers knowledge based systems all around us, every day. If you want to be a part of this knowledge-based revolution and also understand its mathematical, philosophical, and engineering foundations you would certainly be attracted to the field of computer science. A number of reasons why Computer Science is an attractive field today can be seen here.