Answer:
Javascript
Explanation:
Ive learned about it and its the most known one.
Answer:
Close or disable all unused running apps.
Explanation:
Closing programs running in the background on your computer or mobile device helps to free up system resources for your other programs. These problems can be resolved where your system is running slowly or two programs are trying to use the same device hence causing the device or system to drag.
The answer you're looking for might be "backwards-compatible".
