1st Year Computer Science Chapter 2 Notes (New Book 2025-26): Python Programming – All Punjab Boards
Python Programming is the chapter in which Class 11 Computer Science moves from reading about computers to giving them instructions. For many students it is also the first time they meet a programming language in a textbook. These notes are made for Chapter 2 of the new PECTAA book that Punjab introduced in the 2025-26 session, and they collect four kinds of practice, free of charge: MCQs, short questions with answers, long questions with answers, and the solved exercises from the textbook.
Programming chapters ask for two abilities at the same time. You need to remember rules and terms accurately, and you need to explain how a piece of logic works. The four parts of the file are aimed at both of these demands, so you can prepare the written side of the chapter in an organised way.
The Class 11 Computer Science book used in Punjab before 2025-26 was built around a different set of chapters, so notes made for the earlier course will not match. Before you use any notes, check that they were written for the 2025-26 edition.
All nine Punjab boards are covered, from Lahore and Gujranwala to Multan, Bahawalpur, Dera Ghazi Khan, Faisalabad, Sargodha, Rawalpindi and Sahiwal. Keep reading for a description of each part, the question types it relates to, and a plan for combining the notes with hands-on practice.
About Chapter 2 in brief
Chapter 2, Python Programming, is about Python, a widely used programming language, and about writing instructions that a computer can carry out. Its general subject is how a program is expressed in a language the computer understands. What follows describes the notes for this chapter rather than teaching the language itself.
What you get in the 1st year computer science chapter 2 notes
There are four parts in the file. Since each one prepares you for a different style of question, it helps to understand their roles before you begin.
MCQs
The opening part is a collection of multiple-choice questions. In a programming chapter, objective questions often test small but important details: a correct term, a rule of the language, or what a short instruction is meant to do.
Details like these are easy to confuse when you only read them once. Working through the MCQs shows you quickly which rules you know firmly and which ones you are guessing. Attempt each set without the book, then look up every item you were unsure of in the textbook. Over a few rounds, the items you keep getting wrong become your personal revision list.
Short questions with answers
The second part covers short questions with written answers. For a chapter like this, short questions often ask you to define a term, state a rule, or explain the purpose of a feature in a few lines.
Use the model answers to practise being exact without being lengthy. Programming has precise vocabulary, and a short answer is clearer when the correct term appears in the opening sentence. Follow it with one line that explains or illustrates, and stop there.
Long questions with answers
Part three gives longer questions with detailed answers. Detailed questions in this area may ask you to explain a concept step by step or to describe how a piece of logic works from start to finish.
A useful arrangement for such answers is to introduce what you are going to explain, take the reader through it in a clear order, and finish with a short conclusion. When a question involves a sequence of steps, numbering those steps on paper usually makes the answer easier to follow.
The point is to understand the reasoning, not to store a paragraph. Once the logic is clear to you, write the answer in your own words and check that every step is there.
Solved exercises
The last part gives solutions to the questions printed after Chapter 2 in the textbook. The book exercise shows the kind of questions the chapter is built around, and class tests often draw on it.
Attempt the exercise on your own before looking at the solutions. When you compare, check for missing steps, unclear explanations and terms used inaccurately. If a solution surprises you, go back to the related section of the textbook and read it again until the reasoning makes sense.
Why these notes are useful
The file saves you from collecting Chapter 2 practice from many places and keeps it in a form you can revise quickly.
- Prepared for the new textbook. The notes follow the PECTAA 2025-26 chapter on Python Programming.
- Theory practice in one set. MCQs, short answers, long answers and the solved exercise are kept together.
- Support for both memory and explanation. Objective items help you fix rules in memory, while written answers help you explain logic clearly.
- No cost. You can download the file free on this page.
Programming is learned partly by reading and partly by doing. The notes help with the written preparation, but they cannot replace time spent typing and running code yourself.
Which exam questions these notes help with
Each part of the notes lines up with a kind of question often set in the intermediate Computer Science paper. Boards set the final pattern, the question count and the marks, so read the pairing scheme your board has issued for the session in which you will appear.
| Part of the notes | Kind of paper question it supports |
| MCQs | Objective, multiple-choice items |
| Short questions with answers | Short-answer items in the subjective section |
| Long questions with answers | Extended questions that need a detailed explanation |
| Solved exercises | Questions based on or similar to the book exercise |
You will find many guess papers and “important question” lists for the Python chapter online. They are unofficial, and they often disagree. A safer plan is to prepare the whole chapter and its exercise first. After that, let the official pairing scheme guide where extra revision time should go.
How to study with these notes
Programming is easier to learn in short, regular sessions than in one long push. Here is a plan you can adapt:
- Read the chapter in the textbook. Follow each example in the book slowly and make sure you can say in plain words what it does.
- Practise on a computer. If you have access to one at home, at college or in a lab, type the examples from the textbook yourself and run them. Change a small detail and see what happens.
- Keep a rules notebook. Write each rule or term of the language on a separate line with a short explanation in your own words.
- Try the book exercise on scrap paper. Then check it against the worked solutions and correct it.
- Go through the written answers. Read them, close the file, and rewrite a few from memory, checking that each step is in place.
- Do the MCQs without help. Check every choice against the textbook and add the rules you missed to your notebook.
- Revise in small doses before tests. Go back to your rules notebook and the MCQs shortly before each class test and again before the board exam.
Practising your written answers by hand is also important. The paper is written, and explaining logic clearly on paper is a separate skill from writing it on a screen.
Who should use these notes
The file is meant for Class 11 students in Punjab who are learning Computer Science from the new 2025-26 textbook. ICS students make up most of this group, though any intermediate student who has chosen Computer Science under a Punjab board can use the notes in the same way.
The notes also serve private candidates, provided the same textbook is set for them. Confirm with your institution or board first if you do not know which book your session uses.
Download the notes
The 1st year computer science chapter 2 notes can be downloaded free from this page. You do not have to leave this page or visit another website to get the file.
Store it next to your rules notebook and other Computer Science material so you can return to it whenever you revise.
Frequently asked questions
Which book is the Python Programming file prepared for?
It is made for Chapter 2 of the new PECTAA Class 11 Computer Science book, the edition Punjab has used since the 2025-26 session.
What does the Chapter 2 file include?
There are four parts: MCQs, short questions with answers, long questions with answers, and worked answers to the exercise in the book.
Is reading the notes enough to learn Python?
Reading helps with the theory and the written answers, but programming skill grows through practice. Type and run the textbook examples on a computer whenever you can, and use the notes to prepare the written side of the chapter.
Do I have to pay for this file?
You do not. You can download the Chapter 2 notes here at no cost.
I have never studied programming before. Can I still follow these notes?
Yes. Read the chapter slowly and practise the textbook examples. Test each new term with the MCQs and short answers before you move on to the longer answers.