Crack Computer Science Competitive Exams with Maruti.fun
Search topic-wise & subject-wise YouTube video lectures, high-yield exam notes, standard reference books, and attempt real exam-pattern quizzes.
Subject-Wise & Topic-Wise Study Hub
Select any subject to explore topic-wise video links, revision notes & reference books
Operating System (OS)
Process Management, CPU Scheduling, Deadlocks, Memory Management, Paging & Disk Scheduling.
DBMS & SQL
ER Model, Relational Algebra, Normalization (1NF-BCNF), SQL Queries, Transactions & Concurrency.
Computer Networks
OSI & TCP/IP Stack, IPv4 Subnetting, Flow Control, Routing Algorithms, TCP/UDP & Network Security.
Data Structures & Algorithms
Arrays, Stack, Queue, Linked Lists, Trees (BST, AVL, B-Tree), Graphs, Hashing & Time Complexity.
Programming (C, C++, Python)
Pointers in C, OOPs in C++, Python for KVS/NVS/HPSC (Pandas, NumPy, File Handling, Recursion).
Digital Logic & COA
Number Systems, Boolean Algebra, K-Map, Combinational/Sequential Circuits, Pipelining & Cache Memory.
Software Engineering & Web Tech
SDLC Models, Testing, Cyclomatic Complexity, HTML5, CSS, JavaScript, XML & Cyber Security.
Featured Video Lectures, Notes & Reference Books
Curated high-scoring topics for HPSC, KVS PGT/TGT, NVS, Programmer & Instructor exams
Computer Science with Python (Class XI & XII NCERT + Sumita Arora)
Essential for KVS PGT CS, NVS PGT, DSSSB & HPSC PGT exams where NCERT Python, Pandas, File Handling & SQL connectivity dominate.
Data Communications and Networking (5th Edition)
Best reference book for Computer Networks: OSI layers, Data Link control, IPv4/IPv6 Subnetting, and TCP/UDP protocols.
Database System Concepts (7th Edition)
Standard textbook from which direct theoretical & numerical questions on Normalization, SQL, and Concurrency Control are framed in HPSC & Programmer exams.
Operating System Concepts (10th Edition - Dinosaur Book)
The gold-standard reference book for HPSC PGT CS, RPSC Programmer & GATE-level OS concepts, synchronization, and memory management.
Binary Trees, BST, AVL & B-Tree Formula Cheat Sheet for Competitive Exams
All direct formulas for leaf nodes, height of binary trees, number of unlabeled binary trees (Catalan Number), and Heap time complexities.
SQL Clauses Execution Order, Joins & Aggregate Functions Revision Sheet
Exact order of SQL execution, NULL handling in COUNT(*) vs COUNT(col), and Correlated Subquery shortcuts.
Deadlock Necessary Conditions, Avoidance & Banker's Algorithm Complete Notes
High-yield revision notes on Coffman's 4 conditions, Resource Allocation Graph (RAG), and Safe Sequence formula.
Python One-Shot Marathon for KVS PGT, HPSC & NVS (Output Questions)
Covers Python string/list slicing with negative step, mutable default arguments, tuple unpacking, and file handling modes.
IPv4 Subnetting, CIDR & VLSM Numericals Made Easy
Solve any subnet mask, host range, broadcast IP, and CIDR /26 /27 /28 question without binary conversion.
Topic-Wise & Full Mock Test Series
Guest User Access Enabled: You can attempt up to 2 quizzes without login (2 remaining). Login for free to unlock all quizzes!
Operating System Mock Test #1: CPU Scheduling, Synchronization & Deadlocks
Free Guest Access Quiz! Test your command over Process states, SJF/Round Robin numericals, Semaphores, and Banker's Algorithm.
DBMS & SQL Mock Test #2: Normalization, Candidate Keys & SQL Queries
Free Guest Access Quiz! High-yield PYQs on 1NF-BCNF, Lossless Decomposition, SQL Aggregate functions, and ACID properties.
Computer Networks Mock Test #3: OSI Model, IPv4 Subnetting & TCP/IP
Login to unlock this premium exam-level quiz covering CIDR subnetting, Hamming distance, Flow control protocols, and Routing.
Python, Data Structures & Digital Logic Combined Mock #4
Full syllabus mixed mock test for KVS PGT Computer Science, HPSC PGT & Computer Instructor aspirants.