Build a strong understanding of the core concepts that make Solana different from other blockchains.

Transactions - Collection of instructions for the blockchain to execute
Accounts - Data and state storage mechanism for Solana
Programs - The executable code used to perform actions on the blockchain
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Malang, Malang City, East Java, Indonesia

Sharding is splitting up the Ethereum blockchain so that subsets of validators are only responsible for a fraction of the total data. This was originally intended to be the way for Ethereum to scale. However, layer 2 rollups have developed much faster than expected and have provided a lot of scaling already,