single-purpose system
nounUK /ˌsɪŋɡəl ˈpɜːpəs ˈsɪstəm/
US /ˌsɪŋɡəl ˈpɜːrpəs ˈsɪstəm/
A single-purpose system is a machine or setup that does only one job.
The toaster is a single-purpose system because it only makes toast.
OTHER MEANINGS
2. A computer or software setup built to run just one program or task.
The old cash register is a single-purpose system that only handles sales.
3. A plan or process designed for one specific goal and nothing else.
Their single-purpose system for sorting mail cannot be used for anything else.
4. A machine with fixed parts that cannot be changed to do new jobs.
The factory's single-purpose system stamps the same shape all day long.