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Computer Science

Class 10

Computer Science for Class 10 (Matric Part 2, Class 10), Punjab board, following the new PECTAA book: notes, key terms, solved examples, short questions and MCQs, explained in English, Urdu and Roman Urdu. Every open lesson is free. A chapter with no lesson yet says Coming soon.

Start · What an operating system does

Chapters

  1. Chapter 1Operating Systems: Structure and Services≈ 160 min

    0 of 8 lessons done

    Start with lesson 1 and take your time.

    Start →
  2. Chapter 2TroubleshootingComing soon
  3. Chapter 3Title to be confirmedComing soon
  4. Chapter 4Title to be confirmedComing soon
  5. Chapter 5Title to be confirmedComing soon
  6. Chapter 6Title to be confirmedComing soon
  7. Chapter 7Title to be confirmedComing soon
  8. Chapter 8Title to be confirmedComing soon

A taste of the free chapter

1.1 What an operating system does

Three jobs: controller (decides what runs and when), translator (your clicks into hardware instructions), guard (separate, private accounts on a shared computer).

Try one MCQ

Which is NOT an example of an operating system?

  1. (a) Linux
  2. (b) Windows
  3. (c) Photoshop
  4. (d) macOS
Show answer

(c) Exercise MCQ 1 (p. 16); key p. 18. Photoshop is an application.

Open the free lesson →What an operating system does

How every lesson works

  1. Read: the problem first, then the one rule that solves it.
  2. Key terms: four ideas the board asks about, each with a “why”.
  3. Try it: an interactive you can play with, and a question you answer on screen.
  4. Model answers: board-style questions solved line by line.
  5. Common mistakes: the traps that cost marks every year.
  6. MCQs: five questions, each with the reason behind the answer.
  7. Quick revision: three points to remember before the exam.

What comes next

  • Every chapter of all 7 subjects of your year: Chemistry, Physics, Biology, Maths, Computer Science, English and Urdu.
  • Notes, model answers, common mistakes and MCQs for every lesson.
  • Every step in English, Urdu and Roman Urdu; switch any time.
  • More chapters of the new PECTAA books, added one by one as each is checked against the book.

Every open lesson is free. The rest is coming soon.

More chapters: coming soon

One book, all nine Punjab boards

The same Punjab textbook is used by the boards of Lahore, Rawalpindi, Gujranwala, Faisalabad, Multan, Sargodha, Bahawalpur, Dera Ghazi Khan, Sahiwal. These notes fit your board too.

Questions students ask

Are the lessons really free?
Yes. Every lesson that is open is free for everyone, with all its notes, model answers and MCQs. No sign-up needed to read it.
What about the other chapters?
They are listed in the order of the new PECTAA book and say Coming soon. We add them one by one, each checked against the book.
Does it match my board?
Yes. All nine Punjab boards use the same Punjab textbook, so the chapters, questions and MCQs here fit Lahore, Rawalpindi, Multan and every other Punjab board.
Can I study in Urdu?
Yes. Every explanation is in English, Urdu and Roman Urdu. Science terms stay in English, as they appear in your exam paper.