CodeHelp - by Babbar Courses

Relational Model Explained - DBMS for Placements

Comprehensive overview of relational database concepts, covering key terminology, design principles, and integrity constraints for effective data management and querying.

• YouTube
• 56 minutes
• Self-Paced
• Free Video

Designing the ER Model of Facebook Database - DBMS for Placements

Learn to design a Facebook-like database using ER modeling. Covers entity identification, attribute types, relationships, and constraints, culminating in a complete ER diagram.

• YouTube
• 20 minutes
• Self-Paced
• Free Video

How to Think and Formulate an ER Diagram - Banking System ER Model

Learn to create ER diagrams for banking systems through step-by-step guidance, from identifying entities and attributes to establishing relationships and constraints.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Extended ER Features - Abstraction in ER Model

Explore extended ER features and abstraction in ER modeling, covering specialization, generalization, inheritance, and aggregation concepts for enhanced database design.

• YouTube
• 31 minutes
• Self-Paced
• Free Video

Solving LeetCode Problems on Concurrency - Operating Systems Placement Series

Explore LeetCode concurrency problems in operating systems, focusing on FooBar alternation, zero-even-odd printing, and H2O building challenges.

• YouTube
• 34 minutes
• Self-Paced
• Free Video

What Is Thrashing - Important Interview Question

Explore thrashing in operating systems through engaging scenarios, definitions, and techniques. Learn about CPU utilization, multi-programming, and strategies to handle thrashing effectively.

• YouTube
• 35 minutes
• Self-Paced
• Free Video

Page Replacement Algorithms - How to Implement LRU Algorithm

Explore page replacement algorithms in operating systems, including FIFO, Optimal, and LRU. Learn implementation techniques for LRU cache and understand Belady's Anomaly.

• YouTube
• 41 minutes
• Self-Paced
• Free Video

What Is Virtual Memory - Page Fault in OS

Comprehensive exploration of virtual memory concepts, including demand paging, page faults, and their advantages. Covers key principles and practical applications in operating systems.

• YouTube
• 44 minutes
• Self-Paced
• Free Video

What Is Segmentation - Non-Contiguous Memory Allocation

Explore segmentation in operating systems, including address translation, advantages, and disadvantages. Learn about non-contiguous memory allocation and its implications for system performance.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

What Is Paging - Non-Contiguous Memory Allocation

Explore paging in operating systems, including address translation, context-switching, and performance optimization techniques like Translation Look-aside Buffer (TLB).

• YouTube
• 48 minutes
• Self-Paced
• Free Video

How OS Manages Free Space - Memory Management

Explore memory management in operating systems, covering free space management, defragmentation, and allocation methods like First-Fit and Best-Fit for efficient resource utilization.

• YouTube
• 31 minutes
• Self-Paced
• Free Video

Trie and Its Implementation - C++ Placement Series

Comprehensive tutorial on Trie data structure in C++, covering theory, implementation, and operations like insertion, search, and removal. Includes practical examples and a coding question.

• YouTube
• 48 minutes
• Self-Paced
• Free Video

Solving LeetCode Problems on Concurrency - OS Placement Series

Explore concurrency coding challenges with hands-on problem-solving, covering Print In Order, Fizz Buzz Multithreaded, and The Dining Philosophers problems. Gain practical insights into OS concepts and placement preparation.

• YouTube
• 31 minutes
• Self-Paced
• Free Video

Hashmaps in C++ - C++ Placement Series

Comprehensive exploration of hashmaps in C++, covering implementation, STL usage, hash functions, collision handling, and practical applications for efficient data storage and retrieval.

• YouTube
• 1 hour 3 minutes
• Self-Paced
• Free Video

Deadlock Avoidance - Deadlock Detection and Recovery

Comprehensive exploration of deadlock avoidance, detection, and recovery in operating systems, featuring Banker's Algorithm and wait-for graphs. Includes practical examples and motivational tips for learners.

• YouTube
• 24 minutes
• Self-Paced
• Free Video