Creators of social media

Question

What programming languages was used in making social media apps such as What'sapp,Facebook etc. And where their creators rich before making this globally used apps?

Answer 1

Facebook was developed by a rich kid. :) But that was not the key to it. Being wealthy helped him because Mark Z was attending Harvard University. Harvard was the key to his success. Had Mark Z gone to community college, he would never have created Facebook.

The real key to his success is he came up with an idea that wasn't being done. He basically "discovered" the concept of letting the users be the content.

If you watch the movie, you'll see that his first version was a really simple app he built in a number of hours. He expanded it to allow people to share relationship status and what they were doing. But it was years before it looked anything like what it does now.

Answer 2

This is something to look up using your favourite search engine.

https://sololearn.com/compiler-playground/W0uW3Wks8UBk/?ref=app

Answer 3

Mostly "React Native", and "Flutter" with default Android Studio project

Answer 4

Here’s a breakdown of the major languages used in creating these platforms:

1. WhatsApp
Backend: Erlang, FreeBSD (server-side)
Frontend: Java (Android), Objective-C/Swift (iOS)
Database: MySQL
Other Technologies: XMPP (for messaging protocol), WebRTC (for voice/video calls)
2. Facebook (now Meta)
Backend: PHP (originally, now converted to Hack)
Frontend: JavaScript (React.js, developed by Facebook)
Database: MySQL, RocksDB
Other Technologies: GraphQL, Python (for AI and ML tasks), C++ (for performance-critical components)
3. Instagram
Backend: Python (Django framework)
Frontend: JavaScript (React.js)
Database: PostgreSQL, Cassandra
Other Technologies: Celery (for task management), Redis (for caching)
4. Twitter (now X)
Backend: Ruby (originally), Scala, Java, C++
Frontend: JavaScript (React.js)
Database: MySQL, Redis, Hadoop
5. TikTok
Backend: Python, Go, Java
Frontend: JavaScript (React.js, Vue.js)
Database: MySQL, Redis
Other Technologies: TensorFlow (for AI-based recommendations), FFmpeg (for video processing)
Were Their Creators Rich Before Building These Apps?
Most of the founders of these social media giants were not rich before launching their platforms—they built their wealth after their apps gained massive success.

1. Mark Zuckerberg (Facebook)
Before Facebook: A Harvard student with strong coding skills.
After Facebook: Became a billionaire in his early 20s, now worth over $100 billion.
2. Jan Koum & Brian Acton (WhatsApp)
Before WhatsApp: Jan Koum was from a poor immigrant family and worked at Yahoo. Brian Acton was rejected by Facebook before co-founding WhatsApp.
After WhatsApp: WhatsApp was sold to Facebook for $19 billion, making them billionaires.
3. Kevin Systrom & Mike Krieger (Instagram)
Before Instagram: Systrom was a product manager at Google, and Krieger was a Stanford graduate.
After Instagram: Sold Instagram to Facebook for $1 billion, making them extremely wealthy.
4. Jack Dorsey, Biz Stone & Evan Williams (Twitter)
Before Twitter: Dorsey was a software engineer, Williams had experience