A callback function is code that's called, or run, when a specific event such as a click of the mouse, happens.Callback is another name for a callback function. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The term composition in simple words is “putting together”. It is a thing composed of various elements.
Answer:
RAM Slots
Explanation:
If you upgraded RAM then check if RAM is in correct slots according to the Motherboard Manual, i had the same issue when i replaced my RAM.
