These days mobile phones play a very important role in our daily lives. After the COVID-19 pandemic, the importance of mobile phones has increased even more than before in our lives. We use mobile phones to perform various important tasks like making phone calls, accessing our social media accounts, clicking photos or making videos of important events, using an alarm or torch, making calculations with the help of a calculator, and being a part of an online meeting. https://bit.ly/3uZYN4i