ISC Class 12 Computer Science Specimen Papers 2026-27

Build complete board readiness for ISC Class XII Computer Science Theory with 15 fully solved, original specimen papers covering Boolean Algebra, Logic Gates, Object-Oriented Programming in Java, and Data Structures, each modelled on the official exam blueprint.

Each paper follows the standard format, Part I (20 marks, compulsory) and Part II (50 marks, with internal choice across three sections), for 70 marks in 3 hours, with 15 minutes of prior reading time.

What's inside:

• 15 complete papers across Easy (Papers 1 to 5), Moderate (Papers 6 to 10), and Difficult (Papers 11 to 15) levels, building from single-class Java programs and 3-variable Boolean problems to layered class hierarchies, interface combinations, and advanced algorithmic techniques

• Boolean Algebra and Logic Gates questions in every paper, including word-problem simplifications, Karnaugh map groups, and circuit analysis, progressing from 3-variable to complex multi-variable problems in the Hard papers

• Java OOP questions in every paper, covering inheritance, abstract classes, interfaces, runtime polymorphism, and arrays of objects, with every program dry-run traced with sample input and output

• Data Structures and Recursion questions in every paper, covering stacks, queues, linked lists, binary trees, BSTs, and sorting algorithms, with progressively harder techniques across difficulty levels

• Detailed answer keys with marking-scheme breakdowns separating logic marks from syntax marks, plus common mistake notes explaining how examiners award partial credit

• No scenario, program, or numerical value repeated across all 15 papers

How to use it: Attempt each paper under strict exam conditions, 15 minutes reading time followed by 3 hours of writing, before reviewing the answer key. Study the common mistake notes carefully to understand what examiners look for in partial credit situations.

Independent educational practice material. Not affiliated with or endorsed by CISCE or any examination board.