You may consult the following books for different section of Computer Science subject

1) Section A-Operating System: Operating System Concepts- silberschatz galvin

2) Section A-Computer Architecture: Computer Architecure by Willialm stallin

3) Section B-Structure and Object Oriented Programming: Object Oreinted Programming in C++ by Robert Lafore.

4) Section B- Data Structure and Algorithm: Algorithm by Robert Sedgwick.

5) Section B- Software Engineering: Software Engineering a practicioner appraoch.

6) Section C- Database Management: You can consult some books for this topic, however this link will help you in estabilishing a basic understanding as well as cover the syllabus (http://www.utexas.edu/its/archive/wi...ng/rm/rm7.html)

7) Section A- Computer Networks: Data Communication and networks by william