Class 12 Stacks Queues and Linked List Revision Notes

Computer Science
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Read and download the Class 12 Stacks Queues and Linked List Revision Notes. Designed for 2025-26, this advanced study material provides Class 12 Computer Science students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for Class 12 Computer Science Stacks Queues and Linked List

To achieve a high score in Computer Science, students must go beyond standard textbooks. This Class 12 Stacks Queues and Linked List study material includes conceptual summaries and solved practice questions to improve you understanding.

Class 12 Computer Science Stacks Queues and Linked List Notes and Questions

Stack

In computer science, a stack is a Last in, First out (LIFO) data structure. It simply means that an element that is inserted at the end will be deleted first. To Manage a stack all the insertion and deletion takes place from one position called “top”.
One of the common uses of stack is in function call.
 
♦ Operations on the Stack

There are two fundamental operations
Push
Pop
Push means to insert an element
Pop means to delete an element
 
Queue

In computer science, a Queue is a First in, First out (FIFO) data structure. It simply means that an element that is inserted at the beginning will be deleted first. To Manage a queue all the insertion and deletion takes place from two different positions called “front” and “rear”.
Every element is inserted from the rear position and deleted from the front position in the queue.
 
Linked List

A linked list is a data structure consisting of a group of nodes which together represent a sequence. Under the simplest form, each node is composed of a data and a reference (in other words, a link) to the next node in the sequence; more complex variants add additional links. This structure allows for efficient insertion or removal of elements from any position in the sequence.
 
Here in the figure is an example of a linked list whose nodes contain two fields: an integer value and a link to the next node. The last node is linked to a terminator used to signify the end of the list. Linked lists are among the simplest and most common data structures. They can be used to implement several other common abstract data types, stacks, queues etc though it is not uncommon to implement the other data structures directly without using a list as the basis of implementation.
The principal benefit of a linked list over an array is that the list elements can easily be inserted or removed without reallocation or reorganization of the entire structure because the data items need not be stored contiguously in memory or on disk. Linked lists allow insertion and removal of nodes at any point in the list, and can do so with a constant number of operations if the link previous to the link being added or removed is maintained during list traversal.
Linked list are dynamic structure where memory allocation takes place at run time.
 
♦ Operation on a linked list

There are three basic operations on a linked list
Insertion
Deletion
Traversal
 
Inserting a node or element into Linked list :
Inserting an element into linked list contains 3 types .
1. Insertion at beginning of the Linked list
2. Insertion after/before any element of the linked list
3. Insertion at the end of the linked list
 
♦ Deleting a node from the Linked list

A node can be deleted in 3 ways similar to Insertion.
1. Deleting a Node from the beginning of the Linked List
2. Deleting a node before/after an element from the Linked list.
3. Deleting a node from the end of the Linked List .
 
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Important Practice Resources for Class 12 Computer Science

CBSE Class 12 Computer Science Stacks Queues and Linked List Study Material

Students can find all the important study material for Stacks Queues and Linked List on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 12 Computer Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Stacks Queues and Linked List Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for Class 12 Computer Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 12 Computer Science.

Complete Revision for Computer Science

To get the best marks in your Class 12 exams you should use Computer Science Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Stacks Queues and Linked List will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 12 students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for Class 12 Computer Science Chapter Stacks Queues and Linked List?

Our advanced study package for Chapter Stacks Queues and Linked List includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.

How do Mind Maps for Computer Science Chapter Stacks Queues and Linked List help in revision?

The Mind Maps provided for Chapter Stacks Queues and Linked List act as visual anchors which will help faster recall during high-pressure exams.

Are these Computer Science resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 12 Computer Science resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Stacks Queues and Linked List free to download in PDF?

Yes, You can download the complete, mobile-friendly PDF of the Computer Science Chapter Stacks Queues and Linked List advanced resources for free.

Does this material cover rationalized content for the 2025-26 CBSE session?

Yes, our subject matter experts have updated the Chapter Stacks Queues and Linked List material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.