In today's lecture Harkirat deep dive into a PDAs - Program Derived addresses , Solana Blockchain, Token Program, Mint Account and ATA we discussed about this more in class lets look into it
Solana Blockchain
Imagine the Solana blockchain is like a giant library, but instead of books, it has millions of lockers. Each locker belongs to different people, and inside these lockers, people can store things like tokens (think of them as digital coins) or information (like contracts).
The Players (People and Programs):
- Accounts (Lockers): In Solana, these lockers are called accounts, and they belong to users (you, me, and anyone else) or to programs (apps, businesses).
- Programs (Apps or Services): Programs are like apps. Think of Uber, a ride-sharing app, which connects drivers with people who need rides. In Solana, these programs can interact with accounts.

Diagram Breakdown:
- System Program: This is like the "bank" that helps you open your wallet (locker). For example, "Harkirat's SOL wallet" and "Raman's SOL wallet" are like their personal lockers.
- Uber Program: Think of this as the actual Uber app on your phone, except it's running on Solana. The Uber Program can create accounts for different rides. So, when a user books a ride, an account (locker) is created for that ride. For example, "Ride 1 acc" is for one Uber ride, and "Ride 2 acc" is for another.
- Token Program: This program is like a special coin machine. It creates tokens (digital coins) for users. "Mint account" is like the main vault that creates tokens, and "User 1 ATA" and "User 2 ATA" are the personal coin lockers for User 1 and User 2.
Real-Life Example:
- Imagine you’re using Uber. You and your friend Harkirat both have wallets (lockers) where you store money. When you request a ride, Uber creates a special ride locker for that trip, where all the ride info is stored.
- After the ride, money (tokens) from your wallet is transferred to the driver. The Uber program, which is like the app, controls everything without needing a bank or any middleman.
In summary: Solana is like a huge library of lockers, where everyone stores their own coins or information, and programs like Uber can use these lockers to do business.
Token Program
The Token Program is like a vending machine that creates and manages digital coins (tokens). These tokens can be used in different ways, like paying for things in a game or trading with other players.

Breaking it Down with the Diagram: