B.Tech Second Year, Third semester

 

 

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This is unofficial blogg.

For the Computer Science students

Welcome to akashaakash, the unofficial blog dedicated to Computer Science Engineering students! This platform is designed exclusively for study resources, syllabus details, and essential academic information to help you stay on track with your studies. Whether you're looking for structured course materials, exam syllabi, or important study guides, akashaakash aims to be your reliable resource hub. Our goal is to provide clear, well-organized information to support your academic journey. Stay updated with the latest syllabus, reference materials, and study tips—all in one place!

Syllabus:-

Data Structure and Algorithms syllabus:-

1. Data Structure:

A data structure is a way of organizing and storing data so that it can be accessed and modified efficiently.

Common types of data structures:-

• Array – Stores elements in a fixed-size sequence.
• Linked List – A chain of nodes where each node points to the next.
• Stack – Last In First Out (LIFO) structure.
• Queue – First In First Out (FIFO) structure.
• Tree – A hierarchical structure (like a family tree).
• Graph – A set of connected nodes (like a network).
• Hash Table (Map) – Key-value pairs for fast lookup

2. Algorithm:

An algorithm is a step-by-step procedure or a set of rules to solve a problem or perform a task.

Common types of algorithms:

• Sorting algorithms – (Bubble Sort, Merge Sort, Quick Sort)
• Searching algorithms – (Binary Search, Linear Search)
• Recursion – A function calling itself to solve a smaller problem.
• Dynamic Programming – Solving complex problems by breaking them into simpler subproblems.
• Greedy Algorithms – Making the best choice at each step.
• Graph algorithms – (Dijkstra’s, BFS, DFS)

Why is DSA Important?

• Helps you write efficient and optimized code.
• Essential for technical interviews.
• Forms the backbone of software development and problem-solving.

Computer system security:-

Computer System Security (also known as Cybersecurity) refers to the protection of computer systems, networks, and data from theft, damage, unauthorized access, or disruption.

Main Goals of Computer System Security (CIA Triad):-

1. Confidentiality – Keeping data private (e.g., passwords, personal info).

2. Integrity – Making sure data is accurate and unaltered.

3. Availability – Ensuring systems and data are accessible when needed.

Types of Security Threats:

• Viruses and Malware – Malicious software that harms your system.
• Phishing – Fake messages/emails to steal your data.
• Hacking – Unauthorized access to a system.
• Denial of Service (DoS) – Overloading a system to make it unusable.
• Ransomware – Locking your files and demanding payment to unlock.

Key Security Measures:

• Antivirus Software
• Firewalls
• Encryption – Securing data so only authorized users can read it.
• Strong Passwords & Authentication
• Regular Software Updates
• Backup Systems

Energy Science and Engineering :-

Energy Science and Engineering is a multidisciplinary field that focuses on understanding, developing, and improving technologies for producing, storing, and using energy efficiently and sustainably.

Main Focus Areas:-

1. Energy Sources:

• Conventional: Coal, oil, natural gas.
• Renewable: Solar, wind, hydro, geothermal, biomass.
• Nuclear: Fission (and future fusion) technologies.

2. Energy Conversion & Storage:

• Power plants, engines, batteries, fuel cells, etc.

3. Energy Efficiency:

• Designing systems that use less energy for the same output.

4. Environmental Impact:

• Reducing pollution, carbon emissions, and promoting sustainability.

5. Smart Grids and Energy Distribution:

• Efficiently managing and distributing power through modern grid system.

• Thermodynamics
• Heat transfer
• Electrical and mechanical systems
• Renewable energy technologies
• Environmental science
• Materials science
• Energy policy and economics