BPSC TRE 01, TRE 02 and TRE 03 Pattern Based: After deep analysis of previous TREs, we found the pattern of BPSC from which BPSC has asked questions. This book has followed the pattern of BPSC, so only the main subjects of Computer Science have been given with large number of MCQs. The main advantage of this book is to it provides you subject wise material. Each subject is categorized as Chapter. After end of every chapter large numbers of MCQs have been given to the candidates for practice and subject wise clarity of the candidate. After finishing all the chapters, various Model Practice Sets have been given. And at the end, solution of previous BPSC TRE Computer Science have been given with detailed explanation.