Satellite C55-B5382 15.6" diagonal widescreen TruBrite TFT display at 1366 x 768 native resolution (HD). Native support for 720p content. 16:9 aspect ratio. LED backlit. 4GB DDR3L 1333MHz (not user upgradable). 1TB (5400 RPM) Serial ATA hard disk drive. Windows 10 Home. Intel Pentium N3540 Processor. Plus 1 year MS Office 365 Personal included. Plus Toshiba 16GB USB Flash Drive in the box.