Microsoft Azure DevOps is a suite of collaborative software development tools, hosted on Microsoft’s Azure cloud platform. Azure DevOps includes an end-to-end life cycle of tools that assist in the development and delivery of software products. Here’s a breakdown of the primary components of Azure DevOps:

1. Azure Boards: Azure Boards allow for planning, tracking, and discussing work across the entire development team. This includes tools for handling work items, backlogs, board, and sprints, which provide a complete view of the current project status and are integrated with the codebase.

2. Azure Repos: Azure Repos is a version control system that helps you manage your code. It provides two types of version control support: Git and Team Foundation Version control. It helps to keep a track of code history and provides a platform to review code.

3. Azure Pipelines: Azure Pipelines is a Continuous Integration/Continuous Deployment (CI/CD) system that works with most languages, platforms, and tools. It is capable of deploying applications to multiple targets including Azure, containers, and even on-premises systems.

4. Azure Test Plans: Azure Test Plans is a tool for managing, tracking, and planning your testing efforts. It allows for both manual and exploratory testing, as well as for the creation and management of test cases.

5. Azure Artifacts: Azure Artifacts lets you share packages across your team, and manages the complexity of different versions and dependencies. It allows teams to share code artifacts, such as Maven, npm, NuGet packages, etc.

The Azure DevOps suite allows for integration with most leading tools in the software development industry and is customizable, enabling teams to choose the services that meet their needs. Azure DevOps also has extensive support for APIs and service hooks for integration with other tools and services.