The most common mistake people make when getting into a Master's in Computer Science program is not doing their research. Many people choose a program based on the wrong criteria, such as the name of the school or the location. Others choose a program without considering their long-term goals or their financial situation.nnAnother common mistake is not taking the time to prepare for the admissions process. Many people think that they can just submit their transcripts and test scores and be done with it. However, the admissions process for a Master's in Computer Science program is much more competitive than for an undergraduate program. You need to make sure that you have a strong application, including letters of recommendation and a personal statement.nnFinally, many people make the mistake of not considering their career options after graduation. A Master's in Computer Science can open up a lot of doors, but you need to have a plan for what you want to do with your degree. Otherwise, you may find yourself stuck in a job that you don't enjoy or that doesn't pay well.