Latency vs. Throughput vs. Bandwidth

Latency, throughput, and bandwidth are the core metrics that describe the performance of a network or distributed system.

17 hrs ago • 

Ashish Pratap Singh

64

1

5

Big-O Notation: Explained in 8 Minutes

Big O Notation is a way to measure how efficiently your code performs as the input size grows.

Nov 4 • 

Ashish Pratap Singh

128

4

5

October 2025

Top 6 API Architecture Styles

An API defines how two systems communicate, what data can be shared, and in what format.

Oct 30 • 

Ashish Pratap Singh

125

4

9

How to Securely Store Passwords in a Database

A password is meant to be secret. If someone steals it, they do not just break into one account, they often get access to every other place where the…

Oct 28 • 

Ashish Pratap Singh

168

4

12

The secret architecture behind "username already taken"

When you try to sign up on a platform like Instagram and type in your username, the system almost instantly tells you whether it’s available or not. If…

Oct 1 • 

Ashish Pratap Singh

365

19

32

September 2025

How Indexing Works in Distributed Databases

In a single-node database, indexing is relatively simple.

Sep 28 • 

Ashish Pratap Singh

119

5

8

Clean Code Tips I Learned from Senior Engineers

Being good at coding and writing good code are two different skills.

Sep 17 • 

Ashish Pratap Singh

149

4

17

How DNS Actually Works

When you type a website address into your browser, something almost magical happens.

Sep 11 • 

Ashish Pratap Singh

172

11

15

What are Server-Sent Events (SSE)?

Imagine you’re watching a stock market dashboard. Prices keep changing every second, sometimes multiple times in a second.

Sep 7 • 

Ashish Pratap Singh

64

4

4

Client-Server Architecture Explained

Every time you're browsing your favorite website, streaming a show, or sending an email, you’re interacting with a system designed around the…

Sep 3 • 

Ashish Pratap Singh

114

8

August 2025

The 10 BIG Questions of System Design

System design is often misunderstood as a simple exercise of sketching boxes and arrows on a whiteboard.

Aug 31 • 

Ashish Pratap Singh

84

1

7

From Zero to 30+ Open Source Contributions

A Guide to Jumpstart Your Journey

Aug 26 • 

Ashish Pratap Singh

 and 

Ritankar Saha

77

1

7