CONNETIVITY OF MY SIM TO LAPTOP

Hello,

I HAVE A HP LAPTOP OR THERE HAVE SIM INPUT SLAT, LIKE WHEN I OPEN MY LAPTOP BATERY THERE HAVE THISH SLAT AND ALSO THERE HAVE WRITTEN (SIM). SO JUST I WANT KNOW ABOUT WHAT THE ACTUAL CAUSE FOR IT.....CAN I CONNECT TO INTERNET THROUGH SIM CARD FOR USING THISH SPACE? IF IT IS POSSIBLE SO TELL ME HOW CAN I DO THISH.....