Stack
CBSE · Class 12 · Computer Science
Complete topic list for Stack in CBSE Class 12 Computer Science. Key concepts, sub-topics, and what to focus on for board exams.
Topics in Stack
Introduction to Stack
- Stack is a linear data structure with LIFO (Last-In-First-Out) principle
- Elements are added and removed from the same end called 'TOP'
- Real-life examples: pile of plates, stack of books, bangles on wrist
Stack Operations
- PUSH operation: Adds element to the top of stack
- POP operation: Removes and returns top element from stack
- isEmpty(): Checks if stack is empty
Implementation of Stack in Python
- Python lists can be used to implement stacks efficiently
- append() method adds elements to the right end (top of stack)
- pop() method removes elements from the right end (top of stack)
Expression Notations
- Infix notation: operators between operands (x + y)
- Prefix notation: operators before operands (+xy)
- Postfix notation: operators after operands (xy+)
Key Concepts
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What are the important topics in Stack for CBSE Class 12 Computer Science?
Stack covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Stack — CBSE Class 12 Computer Science?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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