Infrastructure as Code (IaC) is a modern IT paradigm that involves managing and provisioning computing infrastructure through machine-readable configuration files, rather than through physical hardware configuration or interactive configuration tools. This approach allows for the automation of infrastructure deployment, enabling consistency, repeatability, and scalability in the management of IT resources. IaC is typically implemented using declarative or imperative coding languages and frameworks such as Terraform, Ansible, and CloudFormation. By treating infrastructure as code, organizations can version control their infrastructure configurations, apply software development best practices, and reduce the risk of human error, ultimately leading to more efficient and reliable IT operations.