# Library

## Read articles, gain knowledge, upcoming technologies, programming languages

A blog for programmers, students, and anyone interested in the latest programming news and articles.

### Preparation Guides

Preparation strategy, previous year questions, tips-tricks, aptitude-reasoning, and important questions will help you prepare for product-based and service-based companies. Don't forget to read the interview and coding round strategy articles as well.

### Programming Fundamentals

Programming fundamental is all about building the foundations and get you started with writing the first program. It covers the basic terminologies and core concepts of programming. It covers data types, conditionals, control statements, loops and what not!

### Web Technologies

Web technology refers to the means by which computers communicate with each other using markup languages and multimedia packages. It gives us a way to interact with hosted information, like websites. Web technology involves the use of hypertext markup language (HTML) and cascading style sheets (CSS).

### Aptitude

Aptitude questions primarily contain concepts on topics like data interpretation, probability, coding-decoding, work and time, permutations and combinations, work and time, height and distance, calender, partnership etc. Aptitude is a very essential requisite to clear competitive exams such as CAT MAT SSC UPSC; bank, defense and railway exams and require understanding of both deep knowledge of the concept and knowing the quickest method to solve such problems. Since this is a vast field with diverse topics, that form the bulk of some of the most important exams, we will dive right in to learn the most efficient ways of solving all aptitude based questions.

### Data Structures and Algorithms

In computer science, a data structure is a data organization, management, and storage format that enables efficient access and modification. More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data,i.e., it is an algebraic structure about data. Data structures serve as the basis for abstract data types (ADT). The ADT defines the logical form of the data type. The data structure implements the physical form of the data type. Different types of data structures are suited to different kinds of applications, and some are highly specialized to specific tasks. For example, relational databases commonly use B-tree indexes for data retrieval, while compiler implementations usually use hash tables to look up identifiers.

### Competitive Programming

The three major programming languages used in Competitive Programming are C++, Java, and Python. Each language has its own pros and cons. Some of them are mentioned below: C++: Pros- Takes very less execution time. Cons- It doesn't support some necessary functions. For example, it doesn't support decrease-key operation in the case of priority_queues. Java: Pros- Faster than python but slower than C++. Cons- Code becomes lengthy. Python: Pros- Code becomes very short, with various built-in functions available. Cons- Requires too much time for execution. The major competitive programming-based website is Codeforces in which generally around 15,000 participants participate in a contest. Every website has levels that can be in the form of stars, positions (like a specialist, expert, master, grandmaster, etc), or simply numerical rating.

### Machine Learning

Machine Learning is the ability of machines to learn. Machine Learning is a branch of Artificial Intelligence. The various applications of Machine Learning are used in the Information Technology(IT), medical and education industries. For instance, in modern times, companies widely use Machine Learning for Data Analytics to get more customer engagement. Machine Learning works by learning patterns from a training dataset and applying it to an unseen real-world dataset. The five steps in a Machine Learning pipeline are defining the problem, building the dataset, training the model, evaluating the model, and finally using the model to generate predictions.

### Deep Learning

Deep learning is a more advanced methodology than Machine Learning, which encompasses supervised, unsupervised, and recommendation systems. It is made up of various algorithms and neural networks, such as Convolution Neural Network (CNN) and Recurrent Neural Network (RNN), which have a wide range of real-world applications.

### Computer Vision

Computer Vision is a critical component of Artificial Intelligence that primarily deals with graphics and images. It has a wide range of real-world applications, ranging from medical to defence to everyday smartphones. It has the ability to extract information from any available visual. In this section, you will learn about its concept and implementation.

### Natural Language Processing

Natural Language Processing (NLP) is a broad subset of artificial intelligence that specialises in language, text, and scripts. NLP applications allow you to process text, analyse it, and generate results that can be used for things like translation, comprehension, and developing enhanced scripts. NLP is not limited to English; it is applicable to a wide range of languages.

### Database Management System

A Database Management System(DBMS) is a software system, which allows the storage of related data and provides easy access. DBMS performs important functions which guarantee the integrity and consistency of data in the database. It includes Data Dictionary Management, Data Storage Management, Data Transformation and Presentation, Security Management, Multi-user Access Control, Backup and Recovery Management, Data Integrity Management, Database Access Languages, Application Programming Interfaces, and Database Communication Interfaces.

### Operating System

Operating System is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, computer and software programs would be useless.

### Python

Python is a popular programming language among programmers. It is simple, has numerous applications, and is widely used in the Artificial Intelligence domain. Learn about Python's use cases, applications, programming, and everything else there is to know about it.

### C++

C++ is a middle-level programming language. It was developed by Bjarne Stroustrup at Bell Labs circa 1980.C++ runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. C++ is a general-purpose coding language that has been used for game programming, software engineering, data structures, developing browsers, operating systems.

### Java

Java is a high-level and object-oriented programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. Java is used to develop mobile apps, web apps, desktop apps, games, and much more. Let’s learn together with one of the most popular and widely used programming languages.

### C

Welcome to the blog series for C language. C was developed by Dennis Ritchie in 1972 at Bell Laboratories. C is a middle-level, structured programming language that needs a compiler for running the programs written in the C language. We will cover all the concepts of the C programming language in this series. Let’s start learning C.

### Go

Go language is a language that is used to build programs related to networks & infrastructure. In order to replace the server-side languages, go language was introduced. It is an open-source & procedural language. It is a very simple and easy-to-understand language. Therefore, go language came into the picture.

### C#

C# is known as C sharp. This runs on the .Net framework and is built by Microsoft. It is closely related to the C language whereas it is close to other programming languages also like C++ & Java. The most amazing feature offered by C# is reusability. It is very easy to learn & understand the language.

### Computer Networks

Computer Network is a set of nodes connected by communication links. A communication link can be a wired link or a wireless link. The link carries the information. A node can be a computer, printer, or any other device capable of sending/receiving data generated by other nodes in the network. Let’s explore more about computer networks!

### Theory of Computation

Theory of Computation(TOC) is a theoretical branch of Computer Science and Mathematics which mainly deals with the logic of computation with respect to simple machines, referred to as automata. In the beginning, it may appear a little confusing but once you understand the concepts, you’ll find it to be interesting. So let’s explore together!

### Mobile Technologies

Mobile App Development is one of the most demanding technologies in the current job market, around 99% of people are using smart mobile devices and running mobile apps. We are using apps for digital assistance, social presence, shopping, and whatnot. We will be learning Mobile Technologies like Android app Development, iOS App Development, Developing Hybrid apps in react native and Flutter. We will also learn prerequisites like Kotlin, Dart, Swift in this tutorial series along with in-depth features.

### Computer Organization and Architecture

On our system, we have used programming languages, browsers, various software, and many other things, but what happens behind all of this is still unknown. The amount of processing and various operations that must be performed in order to complete all tasks is enormous. This section of Computer Organization and Architecture will teach you everything you need to know.

### Software Engineering

To develop software, a software engineer needs to follow a systematic approach to design, develop, maintain, test, and evaluate it which is known as software engineering. Software engineering leads to a reliable, effective, and efficient product. In this section, we will discuss in-depth the software development lifecycle, including analysis, design, development, testing, integration, implementation, maintenance, and even retirement.

### Cyber Law and Security

Cybersecurity is the practice of protecting critical systems and sensitive information from digital attacks. These cyberattacks are usually aimed at accessing, changing, or destroying sensitive information. Whereas Cyberlaw is the part of the overall legal system that is related to legal informatics and supervises the digital circulation of information, E-Commerce, Software, and Information Security. Let’s explore more about Cyber Law and Security.

### Cloud Computing

Cloud Computing means the delivery of services via the cloud. There is no use of physical or on-premises data centers. It's been trending, is in demand, and is almost used everywhere in every field. With the advancement of technology, these days cloud services are used a lot. An on-premise data center includes a lot of additional costs like maintenance, management, hardware requirement, software requirement, OS, and much more. Here, things don't end. It takes an entire lifecycle and a constant check on things unless and until they are stopped being in use. Now, the question is who has this much time, space, and money to give lifelong maintenance to things and their cloud came into the picture. There is no role of physical equipment, rather you are going to pay just a maintenance fee to the service provider that you are going to hire who is going to give you all the services through the cloud. A remote session to access everything is cloud computing. That's how cloud computing plays such a major role these days.

### Amazon Web Services

Nowadays, we are shifting to the cloud in order to make operations more straightforward. One of the most popular & broadly adopted cloud platforms in AWS. AWS stands for Amazon Web Services. It is in demand due to the services that it offers like compute services, blockchain services, container services, and many more. Now the question arises of why to go with AWS. So, the answer to this is that AWS provides one of the most productive and cost-efficient cloud computing solutions. Aws offers all the tools that are required to run a business. Even some customized solutions are also provided. Therefore, it is one of the most widely accepted and the best cloud platforms. Let's understand it through this section which proceeds from basic and takes you to the advanced level of AWS services and terms that will be helpful for you.

### Interview Puzzles

"What pulls you down and never let's go?" Apart from Gravity, is that your fear of not having solved enough interview puzzles? Well, we have got your back! Find below a curated list of top interview puzzles that won't just engage your mind and sharpen it like a Swiss Army Knife but will also help you in measuring your CS skills as they exhibit certain patterns, logic, or mathematical formula. We hope you will have a good time solving them! All the best!

### Engineering Mathematics

This blog series is about the basic mathematics that is a fundamental and essential component in all streams of undergraduate studies in sciences and engineering. The blog series consists of topics in set theory, functions, logic & propositional, relations, boolean algebra, binary trees, graph theory, probability theory, linear algebra, calculus, probability and distributions, numerical methods & statistics, and differential equations with applications to various engineering problems.

### Compiler Design

Compilers provide you with the theoretical and practical knowledge that is needed to implement a programming language. Once you learn to do compiler, you pretty much know the innards of many programming languages. Moreover, judging a programming language by its essential features will become easy for you. We are going to cover all the phases of a compiler such as lexical analysis, syntax analysis, intermediate code generation, code optimization, and symbol table in detail.

### Guide to Open-Source

Open-source is a vast field in terms of contribution to software engineering. Open-source software is something where source code is freely and publicly available. It grants privileges to users to modify, be available to use, and distribute the source code with its original rights to the owner. It typically includes a license that enables developers to modify the software which fixes their needs in the best way possible and also controls how to change it, how to fix parts of it, and how the application behaves. Multiple open source initiatives are there to promote and enhance open-source software and communities. In this section, we will learn about contributing to open source, information about multiple open source initiatives, and how to start with open source. Here, we are going to learn about the most popular way to contribute to open source projects i.e., Git & GitHub.

### GATE CSE

Graduate Aptitude Test in Engineering (GATE) is an examination that primarily tests the comprehensive understanding of various undergraduate subjects in engineering and science for admission into the Master's Program and Recruitment by some Public Sector Companies.

### UGC NET(CS)

The National Eligibility Test commonly referred to as UGC NET or NTA UGC NET Exam, started in the year 1989-90, is conducted by the National Testing Agency on behalf of the University Grants Commission for 81 different subjects.NET is used for applying for Assistant Professorships, Research Fellowships, and both at Indian universities and colleges. The NTA conducts the UGC NET exam twice, once in June and once in December. As part of the UGC NET program for the June 2022 session, NTA will conduct tests for positions in Indian government universities and colleges such as Assistant Professor and Junior Research Fellowship.

### WordPress

WordPress is a free and open-source publishing platform (CMS). It's a popular tool for people who wish to create websites and blogs but don't know how to code. The software is completely free to download, use, and modify. WordPress was originally designed to produce blogs, but it can now be used to create any form of the website. Talking about what is word press, we give you an outline of what are the features of WordPress and how to install and set up WordPress. Next, you might ask how to use WordPress? Don't worry we got you. Scroll down and you will find how to get started with WordPress where we will help you in learning the fundaments of WordPress and how to use it. How you can create websites and Blogs, we will be covering them all. Don't think that WordPress consists of only this much, there is much more in WordPress which we covered in Advanced WordPress. You will get to know the usage of various plugins in WordPress. In the end, we don't want you to think that WordPress is the only CMS platform there are many others like WordPress or different from it. You will get to know about them in this article. Just sit tight and enjoy the ride!!!

### Augmented and Virtual Reality

Virtual reality is the simulated environment created with the help of computer devices that fool our senses to make us feel like we are in a new virtual world. Some popular applications of VR are Beat saber, Pistol Whip, and Iron Man VR. Augmented Reality is the enhancement of our real world with the help of computer-generated perceptual information, sometimes across multiple sensory inputs, including visual, auditory, and haptic feedback. Some popular applications of AR are Pokemon Go, Snapchat filters, and Ikea Place.

### Interview Questions

We frequently search for interview questions to ace any interview as we wanted to know what are top questions that are usually asked in any job interview. This series of blogs will provide you with frequently asked interview questions to prepare prior to an interview so that you can demonstrate your knowledge and put yourself ahead of other applicants and lead to an offer. Join us to explore more!