self-running system

noun
UK /ˌself ˈrʌnɪŋ ˈsɪstəm/
US /ˌself ˈrʌnɪŋ ˈsɪstəm/

A machine or program that keeps working on its own without a person helping it.

The self-running system waters the garden every morning without anyone touching it.


OTHER MEANINGS

2. A business or process that keeps going without constant supervision.

After the new manager arrived, the office became a self-running system.

3. A computer setup that starts and manages itself without user commands.

The server is a self-running system that restarts after a crash.

4. A routine or habit that happens without you thinking about it.

Her morning workout became a self-running system after a month.