Dell Inspiron 660S Desktop Computer I660S-2311BK, Windows 7 Home Premium Intel Pentium G2020 Microsoft Windows 7 Home Premium (64-bit) 4GB DDR3-1600 SDRAM 1TB 7,200RPM Hard Drive 16x DVDRW Drive 8-in-1 Media Card Reader Intel HD Dell Wireless 1506 802.11b/g/n Wireless Display Not Included