Computer Science Worksheets for Class 12 — Free CBSE/NCERT PDFs

All Class 12 Computer Science worksheets

• Class 12 Computer Networks & Security Basics
• Class 12 Computer Science: Advanced SQL and Database Concepts
• Class 12 Computer Science: Stack and Queue Fundamentals
• Class 12 Computer Science: Functions and Recursion
• Class 12 Computer Science: Python Revision and File Handling Worksheet

Topics covered in Class 12 Computer Science

• Python revision — functions, exception handling, file handling
• Data structures — stack, queue (using Python lists)
• Databases — SQL: DDL, DML, queries, joins
• Python–MySQL interface (introduction)
• Computer networks — types, topologies, protocols, devices
• Network security — firewalls, encryption (introduction)
• Societal impacts — digital footprint, e-waste, cyber ethics
• Sample-paper style questions across all units

How to use these worksheets at home

• Do one theory sheet and one hands-on-at-the-computer follow-up each week. Computer Science at school splits neatly into 'know it' and 'try it'.
• Print the labelling sheets (parts of a computer, keyboard rows, browser window) and let your child match them to your actual laptop or tablet.
• For every command or short program, encourage typing it out on the machine — reading code and writing code are different skills at every age.
• Re-print the vocabulary sheets before unit tests — CBSE Computer Science paper 1 is heavy on definitions and full forms (RAM, ROM, CPU, HTML, URL).

Related topics & sibling classes

Class 12 Computer Science worksheet FAQs

What topics are covered in Class 12 Computer Science?

Class 12 Computer Science covers Python revision — functions, exception handling, file handling, Data structures — stack, queue (using Python lists), Databases — SQL: DDL, DML, queries, joins, Python–MySQL interface (introduction), Computer networks — types, topologies, protocols, devices, Network security — firewalls, encryption (introduction), and more — aligned to the CBSE/NCERT Class 12 pattern, with both theory questions and hands-on practice.

Are these Class 12 Computer Science worksheets aligned to CBSE and NCERT?

Yes. Every Class 12 Computer Science worksheet on this page is built around the CBSE and NCERT Class 12 Computer Science syllabus, so the questions match what your child is doing at school.

How should we balance theory and hands-on for Class 12 Computer Science?

Do the printable theory sheet first, then repeat the same activity on a real computer within 24 hours. That 24-hour bridge is where school Computer Science becomes usable — reading about "Save As" and actually using "Save As" the next day are what turn definitions into skills.

Are these Class 12 Computer Science worksheets free to download as PDF?

Yes — every Class 12 Computer Science worksheet is free to download and print. Open a worksheet, click "Open print view", and either print on A4 or use your browser's "Save as PDF" option. No signup, no watermark, no daily limit.

Do the Class 12 Computer Science worksheets come with answer keys?

Yes. Each workbook ships with a "With answer key" print view, so parents can mark a completed page in a couple of minutes and children can self-check as soon as they finish.

How many Class 12 Computer Science worksheets are on this page?

We're constantly adding to this Class 12 Computer Science library — the count on the printable-worksheets grid above is always live. New sheets go up every week, so bookmark the page and check back for fresh homework and revision practice.