Preparation is the key to success in exams and any exam preparation is generally incomplete without taking help of a tutor. From last few years, we have been developing a series of books with the title "GATE Tutor" To ensure a tutor-like assistance to students so that they do not feel the need to go through any other book for any missing topic. "Gate Tutor 2020" For computer Science and Information Technology is a revised version for the students who are preparing for the current year examination. It presents the topic-wise and unit wise collection of theories with fully explained questions and answers as per the GATE pattern. Each Unit accompanies an Intro exercise for testing the calibre of aspirants about the concepts inside the topic. It provides focused study material for General Aptitude and Engineering Mathematics. It includes Solved papers of 2019-2011 for an in-depth analysis of the pattern of questions. It also contains 5 Practice Sets for giving a final touch to the prep. With essential features like online mock Tests and self-sustaining elaborations of entire concepts and numerical, it is one of our best-selling series of book delivering excellent assistance to students towards GATE exam preparation. Toc solved Paper (2019-2011), General Aptitude, Engineering Mathematics, computer Science and Information Technology, unit wise numerical Answer Type questions, mock tests (1-5), newly added topics in syllabus.