Class 12 Stacks Queues and Linked List Revision Notes

Find the Class 12 Stacks Queues and Linked List Revision Notes right below. We provide advanced study materials for Class 12 Computer Science learners for the 2026-27 term, including expert notes and solved practice questions. Every section matches the latest guidelines from CBSE, NCERT, and KVS.

Stacks Queues and Linked List Study Guide for Class 12 Computer Science

Every Class 12 student studying Computer Science can use this Stacks Queues and Linked List study material to look past basic textbook lessons. It features helpful chapter summaries and solved questions to make learning much easier.

Stacks Queues and Linked List Summary & Questions for Class 12 Computer Science

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

Core Study Kit: Class 12 Computer Science Stacks Queues and Linked List

Access all crucial study resources for Stacks Queues and Linked List conveniently on this page. Our curated archive features in-depth notes, visual Mind Maps for rapid review, and targeted Sure Shot Questions likely to appear in upcoming CBSE exams. Developed strictly around the current 2026 curriculum for Class 12 Computer Science, these tools are recommended by expert educators for daily use to accelerate learning.

Mastering Exam Patterns for Class 12 Computer Science

Compiled using the newest official NCERT book for Class 12 Computer Science, these resources offer authentic academic backing. We integrated past years' exam questions along with step-by-step solutions to give you clear insight into official marking schemes. Once you finish reviewing the chapter notes and solved examples, attempt the practice problems and verify your work against our complete NCERT solutions for Class 12 Computer Science.

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FAQs

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

Our advanced study package for 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 Stacks Queues and Linked List help in revision?

The Mind Maps provided for 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.

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Does this material cover rationalized content for the 2026-27 CBSE session?

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