Bare metal refers to a computer system or network architecture in which the operating system or application runs directly on the hardware without any intermediary software layer, such as a hypervisor or virtual machine manager. In other words, bare metal is a term used to describe a computer system that has not been configured with any software or operating system.
Bare metal is often used in high-performance computing applications where the goal is to achieve maximum processing power and minimal latency. It can also be used in embedded systems, where the system is designed to perform a specific function and does not require a full-fledged operating system.
Bare metal is different from virtualization, where multiple virtual machines share the same physical hardware resources. With bare metal, the operating system or application has exclusive access to the hardware, which can result in better performance and lower overhead compared to virtualized environments.