Dell Inspiron 15 3521 - 15.6" Screen Intel Celeron processor 1017U (2M Cache, 1.6 GHz 4GB Single Channel DDR3L 1600MHz (4GBx1) Intel HD Graphics 4000 320GB 5400 RPM Hard Drive,Optical drive not included 15.6 inch LED Backlit Display with Truelife and HD resolution (1366 x 768)