Definition - What does Headless Computer mean?
A headless computer is a computer that is operated without the traditional monitor, mouse and keyboard peripherals. Headless computers and other remotely controlled hardware devices often operate using network control models.
Techopedia explains Headless Computer
The use of a headless computer can be part of a remote server setup, or a system using a KVM switch in order to allow hardware devices to share peripherals. Alternately, a headless computer can be controlled through remote software using virtual terminals or emulators.