# Lesson 4.1: On-Chain Vs. Off-Chain Code Welcome to Lesson 4.1! In this lesson, you'll learn about the roles and characteristics of on-chain and off-chain code in smart contracts. {% embed url="" %} {% tabs %} {% tab title="Learning Objectives" %} After completing this lesson, you'll be able to: * Describe the differences between on-chain and off-chain code. * Identify the advantages and limitations of on-chain and off-chain code. * Understand the off-chain code compilation process. * Summarize how to interact with off-chain code using `cardano-cli`. {% endtab %} {% tab title="Additional Resources" %} To learn more about the topics covered in this lesson, we encourage you to review the following resources: * [Where is stored off-chain code?](https://cardano.stackexchange.com/questions/2274/where-is-stored-off-chain-code) * [What's the difference between "on-chain" and "off-chain" in plutus smart contracts?](https://cardano.stackexchange.com/questions/219/whats-the-difference-between-on-chain-and-off-chain-in-plutus-smart-contrac) {% endtab %} {% endtabs %} ## Collaborate with the Pioneers Community Remember that you can interact with the participants of the PPP through the [IOG's technical community on Discord](https://discord.gg/inputoutput) by joining the channels under the Plutus Pioneers category. If during the program you have questions about Plutus, we invite you to share them at [Cardano Stack Exchange (CSE)](https://cardano.stackexchange.com/) by adding the `plutus-pioneer-program` tag to your question. The IOG's Education Team members will monitor these questions to support your learning journey. Whenever you share a question at CSE, you're helping to build up the Cardano and Plutus development knowledge base. *** This work is licensed under a [Creative Commons Attribution 4.0 International License](http://creativecommons.org/licenses/by/4.0/).
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