Acer Aspire E1-531-4665, NX.M12AA.032 15.6-Inch Laptop Windows 7 Home Premium 64-Bit, Intel Penttium Core, 4GB Memory 500GB HDD Intel Pentium B960 2.2 GHz 4 GB SDRAM 500 GB 5400 rpm Hard Drive 15.6-Inch Screen Windows 7 Home Premium 64-bit