Configuration Management is the process of handling changes in a system systematically so that it maintains its integrity over time. It involves maintaining and updating the configuration of software, hardware, and other components to ensure consistency, reliability, and performance across all environments. Tools like Puppet, Chef, Ansible, and SaltStack automate the configuration management process, allowing DevOps teams to define and enforce desired states of systems through code. Effective configuration management helps prevent configuration drift, facilitates disaster recovery, and supports scalable and repeatable deployments.