TFS DevOps refers to the integration of Microsoft’s Team Foundation Server (TFS) with its DevOps tools and practices. TFS is a platform that provides a set of tools for managing the entire application development lifecycle, including version control, work item tracking, build automation, release management, and more. DevOps, on the other hand, is a set of practices that aims to combine development and IT operations to streamline and automate the software delivery process.

 Microsoft had been transitioning from TFS to Azure DevOps, a cloud-based platform that offers similar capabilities with a more modern and flexible approach. Azure DevOps provides services for version control (using Git), work item tracking, continuous integration, continuous delivery, and more.

Here are some key concepts and components you might encounter in the context of TFS DevOps or Azure DevOps:

1. Version Control: Both TFS and Azure DevOps support version control systems like Git and Team Foundation Version Control (TFVC). Git is a distributed version control system, while TFVC is more centralized.

2. Work Item Tracking: This involves managing tasks, bugs, user stories, and other development-related items. Work items can be tracked and managed using boards, backlogs, and other visualization tools.

3. Build Automation: Azure DevOps provides the ability to automate build processes. You can define build pipelines that automatically compile, test, and package your application.

4. Release Management: With Azure DevOps, you can set up release pipelines to automate the deployment of your application to various environments, from development to production.

5. Continuous Integration (CI): This practice involves automatically building and testing code whenever changes are committed to the repository. This helps catch issues early in the development process.

6. Continuous Delivery (CD): CD extends CI by automating the deployment process. It ensures that tested and approved changes can be reliably deployed to different environments.

7. Azure Pipelines: Azure Pipelines is a key component of Azure DevOps. It provides the tools for building, testing, and deploying applications. It supports both cloud-based and on-premises deployments.

8. Azure Boards: Azure Boards offer tools for work item tracking and project management. Teams can plan, track progress, and collaborate using boards.

9. Azure Repos: This is the Git repository hosting service in Azure DevOps. It supports Git and TFVC repositories and provides version control capabilities.

10. Azure Test Plans: This tool helps in managing and tracking test cases, exploratory testing, and automated testing.

Please note that Microsoft’s offerings and features might have evolved since my last update, so I recommend checking the official Microsoft Azure DevOps documentation or website for the most up-to-date information on their tools and practices.