what is mean by RAM?

Certainly! In mobile devices, RAM (Random Access Memory) is a type of volatile memory used for temporary data storage. It's a critical component for the device's performance. When you use apps or perform tasks on your mobile device, the data needed for those operations is temporarily stored in RAM. This allows the device's CPU to access and process the data quickly, resulting in smooth and responsive performance.Having more RAM in a mobile device means it can handle a larger number of tasks and store more data simultaneously. 

This is particularly important for multitasking, gaming, and running memory-intensive applications. A higher RAM capacity generally leads to better performance, as the device can juggle various tasks without slowing down or experiencing lag.