# Using GitHub

Explore GitHub's products from different platforms and devices.

## Links

* [Hello World](/en/enterprise-server@3.21/get-started/using-github/hello-world)

  Follow this Hello World exercise to learn GitHub's pull request workflow.

* [GitHub flow](/en/enterprise-server@3.21/get-started/using-github/github-flow)

  Follow GitHub flow to collaborate on projects.

* [Connecting to GitHub](/en/enterprise-server@3.21/get-started/using-github/connecting-to-github)

  Learn about the tools you can use to work with repositories hosted on GitHub.

* [Communicating on GitHub](/en/enterprise-server@3.21/get-started/using-github/communicating-on-github)

  You can discuss specific projects and changes, as well as broader ideas or team goals, using different types of discussions on GitHub.

* [/exploring-early-access-releases-with-feature-preview](/en/enterprise-server@3.21/exploring-early-access-releases-with-feature-preview)

* [Supported browsers](/en/enterprise-server@3.21/get-started/using-github/supported-browsers)

  For the best experience with GitHub, we recommend using the latest version of Chrome, Edge, Firefox, or Safari.

* [GitHub Mobile](/en/enterprise-server@3.21/get-started/using-github/github-mobile)

  Triage, collaborate, and manage your work on GitHub from your mobile device.

* [/allowing-access-to-githubs-services-from-a-restricted-network](/en/enterprise-server@3.21/allowing-access-to-githubs-services-from-a-restricted-network)

* [/troubleshooting-connectivity-problems](/en/enterprise-server@3.21/troubleshooting-connectivity-problems)