This book has been prepared by a group of faculties who are highly experienced in training GATE candidates and are also subject matter experts. As a result this book would serve as a one-stop solution for any GATE aspirant to crack the examination. The book is divided into three parts covering, (1) General Aptitude, (2) Engineering Mathematics and (3) Computer Science and Information Technology. Coverage is as per the syllabus prescribed for GATE and topics are handled in a comprehensive manner - beginning from the basics and progressing in a step-by-step manner supported by ample number of so.

1. The book is prepared for the preparation for the GATE entrance 2. The practice Package deals with Computer Science & Information Technology 3. Entire syllabus is divided into chapters 4. Solved Papers are given from 2021 to 2000 understand the pattern and build concept 5. 3 Mock tests are given for Self-practice 6. Extensive coverage of Mathematics and General Aptitude are given 7. Questions in the chapters are divided according to marks requirements; 1 marks and 2 marks 8. This book uses well detailed and authentic answers Get the complete assistance with “GATE Chapterwise Solved Paper” Series that has been developed for aspirants who are going to appear for the upcoming GATE Entrances. The Book “Chapterwise Previous Years’ Solved Papers (2021-2000) GATE – Computer Science & Information Technology” has been prepared under the great observation that help aspirants in cracking the GATE Exams. As the name of the book suggests, it covers detailed solutions of every question in a Chapterwise manner. Each chapter provides a detailed analysis of previous years exam pattern. Chapterwise Solutions are given Engineering Mathematics and General Aptitude. 3 Mock tests are given for Self-practice. To get well versed with the exam pattern, Level of questions asked, conceptual clarity and greater focus on the preparation. This book proves to be a must have resource in the solving and practicing previous years’ GATE Papers. TABLE OF CONTENT Solved Paper 2021- 2012, Engineering Mathematics, Computer Architecture Organization, Programming &Data Structure, Algorithm, Theory of Computation, Compiler Design, Operating System, Database, Digital Logic, Software Engineering, Computer Networks, Web Technologies, General Aptitude, Crack Paper (1-3).

• Best Selling Book for GATE CS & IT Exam with objective-type questions as per the latest syllabus given by the IISc & IITs. • Compare your performance with other students using Smart Answer Sheets in EduGorilla’s GATE CS & IT Exam Practice Kit. • GATE CS & IT Exam Preparation Kit comes with 10 Full-length Mock Tests with the best quality content. • Increase your chances of selection by 14X. • GATE CS & IT Exam Prep Kit comes with well-structured and 100% detailed solutions for all the questions. • Clear exam with good grades using thoroughly Researched Content by experts.

Graduate Aptitude Test in Engineering (GATE) is one of the recognized national level examinations that demands focussed study along with forethought, systematic planning and exactitude. Postgraduate Engineering Common Entrance Test (PGECET) is also one of those examinations, a student has to face to get admission in various postgraduate programs. So, in order to become up to snuff for this eligibility clause (qualifying GATE/PGECET), a student facing a very high competition should excel his/her standards to success by way of preparing from the standard books. This book guides students via simple, elegant and explicit presentation that blends theory logically and rigorously with the practical aspects bearing on computer science and information technology. The book not only keeps abreast of all the chapterwise information generally asked in the examinations but also proffers felicitous tips in the furtherance of problem-solving technique. HIGHLIGHTS OF THE BOOK • Systematic discussion of concepts endowed with ample illustrations • Notes are incorporated at several places giving additional information on the key concepts • Inclusion of solved practice exercises for verbal and numerical aptitude to guide students from practice and examination point of view • Prodigious objective-type questions based on the past years’ GATE examination questions with answer keys and in-depth explanation are available at https://www.phindia.com/GATE_AND_PGECET • Every solution lasts with a reference, thus providing a scope for further study The book, which will prove to be an epitome of learning the concepts of CS and IT for GATE/PGECET examination, is purely intended for the aspirants of GATE and PGECET examinations. It should also be of considerable utility and worth to the aspirants of UGC-NET as well as to those who wish to pursue career in public sector units like ONGC, NTPC, ISRO, BHEL, BARC, DRDO, DVC, Power-grid, IOCL and many more. In addition, the book is also of immense use for the placement coordinators of GATE/PGECET. TARGET AUDIENCE • GATE/PGECET Examination • UGC-NET Examination • Examinations conducted by PSUs like ONGC, NTPC, ISRO, BHEL, BARC, DRDO, DVC, Power-grid, IOCL and many more

• GATE Computer Science & Information Technology Guide 2020 with 10 Practice Sets - 6 in Book + 4 Online Tests - 7th edition contains exhaustive theory, past year questions, practice problems and 10 Mock Tests. • Covers past 15 years questions. • Exhaustive EXERCISE containing 100-150 questions in each chapter. In all contains around 5250 MCQs. • Solutions provided for each question in detail. • The book provides 10 Practice Sets - 6 in Book + 4 Online Tests designed exactly on the latest pattern of GATE exam.

20 years GATE Computer Science & Information Technology Chapter-wise & Topic-wise Solved Papers (2019 - 2000) is the 6th fully revised & updated edition covering fully solved past 20 years question papers (all sets totalling to 24 papers) from the year 2019 to the year 2000. The chapters are further converted into topics. The order of questions is in the reverse order from 2019-2000. The book has 3 sections - General Aptitude, Engineering Mathematics and Technical Section. Each section has been divided into chapters which are further divided into Topics. Each chapter has 3 parts - Quick Revision Material, Past questions and the Solutions. The Quick Revision Material list the main points and the formulas of the chapter which will help the students in revising the chapter quickly. The questions are followed by detailed solutions to each and every question. In all the book contains 1900+ MILESTONE questions for GATE CSIT.