Computer Science

This is a complete, free study companion for Computer Science — built around what the exam actually asks. The topics examiners repeat most are Stack operations and stack applications, Class and object with access specifiers in C++, and Basic structure of HTML document. The syllabus runs to 9 chapters. Below you'll find the full topic-frequency ranking, the exam paper pattern, every chapter, a step-by-step study plan, and the official downloads — everything in one place.

Everything here is free. We're an independent student resource, not the official Maharashtra Board body, so always confirm the current syllabus and exam dates on the official Maharashtra Board website before you rely on them.

Key information

Level: Class 12
Programme: CL12
Stream: Science
Exam: Higher Secondary Certificate
Conducted by: MSBSHSE

Most frequently examined topics

#	Topic	Times asked
1	Stack operations and stack applications	5
2	Class and object with access specifiers in C++	5
3	Basic structure of HTML document	5
4	HTML tables with rowspan and colspan	5
5	HTML forms and form controls	5
6	8085 features	5
7	8085 functional block diagram	5
8	8085 flag register	5
9	8085 interrupts and priority	5
10	8085 instruction classification	5
11	8085 addressing modes	5
12	8085 program to add two 8-bit numbers	5

Counted across the official previous-year question papers we have analysed for this subject. It shows what has been asked before — it does not predict what will appear in your exam. Always confirm the current syllabus on the official portal.

What you will study (chapters)

Chapter 1: Operating Systems
Chapter 2: Data Structures
Chapter 3: C++ Programming
Chapter 4: HTML
Chapter 5: Introduction to Microprocessors and Organization of 8085
Chapter 6: Instruction Set and Programming of 8085
Chapter 7: Instruction to INTEL X-86 Family
Chapter 8: Introduction to Microcontroller
Chapter 9: Networking Technology

How to study Computer Science and score well

Start with the highest-frequency topics — In Computer Science, Stack operations and stack applications, Class and object with access specifiers in C++, Basic structure of HTML document, and HTML tables with rowspan and colspan appear again and again in past papers. Master these first — they return the most marks for the time you put in.
Practise with previous-year papers — Solve the last 5–10 years of Maharashtra Board Computer Science papers under timed, exam-like conditions. Past papers show exactly which topics repeat and how questions are worded.
Revise actively, not passively — Write a one-page summary for each of the 9 chapters — key definitions, formulas and the points examiners reward — then re-test yourself instead of re-reading.
Mark your answers with the official scheme — After each practice paper, score yourself against the official marking scheme. It shows how marks are awarded step-by-step, so you learn to present answers the way examiners expect.

Exam tips: how to score higher in Computer Science

Where students lose marks: rushing the high-weightage questions, skipping the steps the marking scheme rewards, and saving easy sections for last. Read the whole paper first, attempt your strongest section early to bank marks, and always show your working.

Manage your time: split your time in proportion to the marks each section carries, keep a few minutes at the end to check, and never leave a question blank — a partial, structured answer still earns partial marks.

Frequently asked questions

What are the most important topics in Computer Science?

Based on past papers, the most frequently asked topics include Stack operations and stack applications, Class and object with access specifiers in C++, Basic structure of HTML document. The full ranked list with how often each appears is in the "Most important topics" section above.

Where can I download Computer Science previous-year question papers?

Official Maharashtra Board previous-year question papers are available on the official Maharashtra Board website. Open the Question Papers section for the direct link, plus the exam pattern and the topics that repeat most.

How can I prepare for Computer Science faster?

Start with the highest-frequency topics, learn the exam pattern so you know how each section is marked, and practise with past papers. A subject-aware study tutor can quiz you on exactly these topics.

A Gyani AI tutor trained on the Computer Science syllabus and past papers can quiz you on the most-asked topics and show you exactly what to revise.