Articles

Graphql 🇺🇸

January 24, 2026

GraphQL is a query language for APIs that allows clients to request exactly the data they need in a single request. It provides a type system to describe data and offers a more efficient, flexible, and powerful alternative to traditional REST-based architectures. These notes explore the fundamentals...

Data Transmission 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Data transmission in API design covers how information is sent and received between a client and a server. This involves choosing data formats, transport protocols, security measures, and techniques to ensure both correctness and efficiency. Whether an application is stateful or stateless affects th...

Rest 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Representational State Transfer, often referred to as REST, is an architectural style used to design web services. It uses a stateless communication model between clients and servers, relies on standard HTTP methods, and focuses on simple but powerful conventions. These notes explore the core princi...

Api Communication Protocols 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

API communication protocols describe how different software components exchange data and invoke functionality across networks. They define the transport mechanisms, data formats, interaction styles, and often how developers should structure their requests and responses. These protocols are often cho...

Http Protocol 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Hypertext Transfer Protocol (HTTP) is the foundational communication protocol of the World Wide Web. It follows a client-server model and defines how messages are formatted and transmitted, as well as how servers and clients respond to various commands. HTTP was originally designed for fetching hype...

Tcp and Udp 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are foundational Internet protocols that operate on top of IP (Internet Protocol). They determine how data is packaged, addressed, transmitted, and received between devices. TCP prioritizes reliability and ordered delivery. UDP foc...

Metrics and Analysis 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

In modern distributed systems, the performance and reliability of communication channels, APIs, and network infrastructure are critical factors that determine user experience. Metrics and analysis offer insights into system behavior under varying loads, help identify bottlenecks, and guide capacity ...

Network Communications 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Network communications in a backend context involve the flow of data between clients (browsers, mobile apps, or other services) and server-side applications or services. This process spans multiple layers, from physical transmission over cables or wireless signals, through protocols such as TCP or U...

Web Sockets 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

WebSockets introduce an event-driven, two-way communication channel between clients and servers over a single TCP connection. Unlike traditional HTTP request-response systems, WebSockets enable real-time data exchange with minimal overhead, effectively eliminating the need for repeated polling or lo...

Types of Databases 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Databases store and organize data so that applications and users can retrieve, manage, and manipulate information efficiently. The choice of database often depends on data structure requirements, scale, performance expectations, and the nature of the workload. Over the years, numerous types of datab...

Replication 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Replication is a method of maintaining copies of data across multiple nodes in distributed systems, making it useful for improving availability, reducing latency, and distributing load. Below are detailed notes, organized in bullet points, each containing one highlighted word in the middle to emphas...

Data Warehousing 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Data warehousing unifies large volumes of information from different sources into a centralized repository that supports analytics, reporting, and strategic decision-making. By collecting operational data, transforming it, and then loading it into one or more specialized databases, data warehouses a...

Isolation Levels 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Isolation levels in relational-database systems govern how simultaneously running transactions perceive one another’s changes. They sit on a spectrum that trades consistency guarantees—how “correct” every read is—against concurrency—how many transactions can safely overlap. Choosing the right level ...

Indexes 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Indexing is one of the most effective ways to optimize database queries. By maintaining auxiliary data structures that map certain key values to their physical or logical locations, indexes allow a database to rapidly locate rows that match a search condition. This reduces the number of full-table s...

Coordination Services 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

In large-scale distributed architectures, multiple processes, microservices, or nodes must operate in concert to achieve consistency, fault tolerance, and robust state management. Coordination services address these challenges by offering primitives like distributed locks, leader election, and confi...

Optimistic vs Pessimistic Locking 🇺🇸

January 24, 2026

Category: Backend Engineers Guide

Locking is about managing concurrent access to shared data. Engineers often make it sound harder than it is, but the core idea is simple: choose between optimistic or pessimistic approaches depending on how costly retries are...

Graphs 🇺🇸

January 23, 2026

Category: Algorithms And Data Structures

In many areas of life, we come across systems where elements are deeply interconnected, whether through physical routes, digital networks, or abstract relationships. Graphs offer a flexible way to represent and make sense of these connections...

Multithreading 🇺🇸

January 23, 2026

Category: Parallel And Concurrent Programming

Multithreading refers to the capability of a CPU, or a single core within a multi-core processor, to execute multiple threads concurrently. A thread is the smallest unit of processing that can be scheduled by an operating system. In a multithreaded environment, a program, or process, can perform mul...

Mpi 🇺🇸

January 23, 2026

Category: Parallel And Concurrent Programming

The Message Passing Interface (MPI) is a standardized and portable message-passing system designed to function on a wide variety of parallel computing architectures. It provides a set of library routines that can be called from programming languages like C, C++, and Fortran to write parallel applica...

Multiprocessing 🇺🇸

January 23, 2026

Category: Parallel And Concurrent Programming

Multiprocessing involves running multiple processes simultaneously. Each process has its own memory space, making them more isolated from each other compared to threads, which share the same memory. This isolation means that multiprocessing can be more robust and less prone to errors from shared sta...

Asynchronous Programming 🇺🇸

January 23, 2026

Category: Parallel And Concurrent Programming

Asynchronous programming is a technique used to achieve concurrency, where tasks can be executed independently without waiting for other tasks to finish. It allows for nonblocking behavior, in contrast to synchronous execution that waits for one task to complete before starting the next task...

Searching 🇺🇸

January 05, 2026

Category: Algorithms And Data Structures

Searching is the task of finding whether a particular value exists in a collection and, if it does, where it lives (its index, pointer, node, or associated value). It shows up everywhere: checking if a username is taken, locating a record in a database, finding a file in an index, routing packets, o...

Custom Filters and Algorithms 🇺🇸

January 05, 2026

Category: Vtk Examples

Creating custom filters and algorithms opens up a world of possibilities for tailored data processing and visualization. By extending VTK's capabilities, specialized techniques can be introduced that meet the unique needs of scientific research, engineering, medical imaging, or data analysis...

Input and Output 🇺🇸

January 03, 2026

Category: Vtk Examples

Input/output is where VTK starts being a tool you can actually plug into real workflows. Your data almost never starts life inside VTK, it comes from scanners, simulators, CAD tools, or research pipelines. So the ability to read reliably, preserve attributes, and write back out in the right format i...

Visualization Techniques 🇺🇸

January 03, 2026

Category: Vtk Examples

Modern datasets don’t just have “more rows”, they have more dimensions: space, time, uncertainty, multiple physical variables, and often multiple scales of detail. In that world, visualization isn’t decoration; it’s how you think. VTK matters here because it doesn’t force you into one visualization ...

Animations 🇺🇸

January 03, 2026

Category: Vtk Examples

VTK offers a set of tools to create animations and visualize time-varying data. This is particularly useful in scenarios such as...

Data Structures 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

In computer science, a collection (often interchangeably referred to as a container) is a sophisticated data structure designed to hold multiple entities, these could be simple elements like numbers or text strings, or more complex objects like user-defined structures. Collections help you store, or...

Dynamic Programming 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

Dynamic Programming (DP) is a way to solve complex problems by breaking them into smaller, easier problems. Instead of solving the same small problems again and again, DP stores their solutions in a structure like an array, table, or map. This avoids wasting time on repeated calculations and makes t...

Sorting 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

In the realm of computer science, 'sorting' refers to the process of arranging a collection of items in a specific, predetermined order. This order is based on certain criteria that are defined beforehand...

Basic Concepts 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

Data structures and algorithms are fundamental concepts in computer science and they are the only way to write efficient software...

Backtracking 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

Backtracking is a method used to solve problems by building potential solutions step by step. If it becomes clear that a partial solution cannot lead to a valid final solution, the process "backtracks" by undoing the last step and trying a different path. This approach is commonly applied to constra...

Brain Teasers 🇺🇸

January 02, 2026

Category: Algorithms And Data Structures

Programming puzzles and brain teasers are a fun way to sharpen your coding and problem-solving skills. You’ll often see them in technical interviews, where they’re used to test how you think, analyze problems, and come up with efficient solutions. To do well, it helps to practice and build solid str...

Math Set Relationship 🇺🇸

January 01, 2026

Category: Algorithms And Data Structures

You begin with a small set of “building blocks,” and then you systematically manufacture bigger collections (pairs, sequences, subsets, orderings). The punchline is always the same: what did you build, how many objects exist, and what does it cost to generate them? If you care about algorithms, this...

Interactivity 🇺🇸

January 01, 2026

Category: Vtk Examples

By combining low-level access to rendering primitives with high-level interactor and widget frameworks, VTK enables you to build applications where users can drill into complex datasets, modify display parameters in real time, and receive immediate visual feedback. These capabilities not only enhanc...

Performance Optimization and Parallelism 🇺🇸

January 01, 2026

Category: Vtk Examples

When working with complicated datasets and sophisticated visualization pipelines, performance optimization and parallelism become important for delivering real-time or near-real-time insights. VTK (Visualization Toolkit) supports a variety of performance-enhancing techniques and offers a strong fram...