HP Touchsmart 15-ac121dx 15.6" Touch Screen Laptop-5th Gen Intel Core i3 Processor/ 6GB Memory / 1TB HD / DVD&plusmn;RW/CD-RW / Webcam / Windows 10 Windows 10 brings back the popular Start Menu from Windows 7 and introduces new features, like the Edge Web browser that lets you markup Web pages on your screen. 5th Gen Intel Core i3-5010U processor: Smart dual-core, four-way processing . 15.6" touch screen: Touch, tap and glide through features. 1366 x 768 HD resolution. WLED backlight. 6GB system memory for dependable multitasking: Sufficient high-bandwidth RAM to smoothly run multiple applications and browser tabs all at once. DTS Studio Sound ensures crisp, clear audio. 1TB hard drive for ample file storage space: Holds a significant collection of digital photos, music, HD videos and DVD-quality movies. 5400 rpm spindle speed for standard read/write times. Intel HD Graphics 5500: On-processor graphics, designed to complement low-voltage processors and quickly render high-quality images and smoothly stream videos with frugal power consumption.