built-in program
nounUK /ˌbɪltˈɪn ˈprəʊɡræm/
US /ˌbɪltˈɪn ˈproʊɡræm/
A built-in program is a computer program that comes already inside a device.
The calculator is a built-in program on my phone.
OTHER MEANINGS
2. A feature or ability that is part of something from the start.
Patience seems to be a built-in program in good teachers.
3. A fixed set of instructions that a machine follows automatically.
The washing machine runs a built-in program for delicate clothes.
4. A habit or way of acting that feels automatic.
Waking up early is a built-in program for him now.