developer · intermediate
Programs explained
Programs are stateless. Their state lives in accounts. That changes everything.
Quick summary
- 01Programs explained is a core Solana concept.
- 02Understanding it makes the rest of the topic easier.
- 03It connects directly to wallets, transactions, and on-chain state.
What you'll learn
- What programs explained actually means in plain language.
- The mental model that makes the rest of the topic click.
- Where this concept fits inside the broader Solana ecosystem.
- Common pitfalls and how to avoid them.
This lesson is part of the developer topic in the Solana College curriculum. It introduces the concept clearly, sets up the right mental model, and links out to deeper material in the related lessons section below.
Why this matters
Understanding programs explained is foundational to thinking clearly about Solana. It connects directly to wallets, transactions, and on-chain state — which is why it shows up early in most learning paths.
How it works
The key idea is that Solana separates state (held in accounts) from logic (held in programs). Once you have that separation in mind, the rest of the topic — fees, signatures, composability — becomes much easier to reason about.
What to learn next
Continue with the related lessons listed at the bottom of this page — they were chosen specifically to deepen your understanding of developer.
Key takeaways
- →Programs explained is a core building block of the Solana ecosystem.
- →State lives in accounts; programs hold logic. This split is everywhere.
- →Mastering this concept unlocks the rest of the topic.
Frequently asked questions
Is this beginner-friendly?
Yes. We deliberately avoid jargon and define every Solana-specific term as it appears.
What should I read after this?
Follow the "People also learn" section below — it pulls the most relevant adjacent lessons.
People also learn
developer
PDAs explained
Program Derived Addresses — the deterministic accounts a program controls.
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Transactions and instructions
Instructions compose into transactions. Transactions are atomic.
developer
Solana accounts explained
Everything on Solana is an account. Here's the model that ties it all together.
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Cross-program invocations (CPIs)
How one program calls another — and why composability is Solana's superpower.
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