Touchscreen Toshiba Satellite C55DT-C5230X. Is a 15.6" diagonal widescreen TruBrite TFT display at 1366 x 768 native resolution (HD) Touchscreen Native support for 720p content 16:9 aspect ratio LED backlit. AMD A4-7210 Quad-Core APU with AMD Radeon R3 Graphics Base 1.8 GHz, Max 2.2 GHz 4GB DDR3L 1600MHz (not user upgradeable) 2 main memory slots 750GB (5400 RPM) Serial ATA hard disk drive Windows 10 Home DVD SuperMulti drive supporting 11 formats Built-in stereo speakers