low-level function
nounUK /ˌləʊ ˈlɛvəl ˈfʌŋkʃən/
US /ˌloʊ ˈlɛvəl ˈfʌŋkʃən/
A low-level function is a small computer job that works very close to the machine.
The programmer wrote a low-level function to talk directly to the memory.
OTHER MEANINGS
2. A function in a programming language that gives direct access to hardware or memory.
Reading a port is a low-level function that bypasses the operating system.
3. A simple, foundational task within a larger system.
In the model, a low-level function handles each tiny step of the process.
4. A basic bodily or mental process, such as breathing or reflex.
Breathing is a low-level function controlled by the brainstem.