ACER Aspire Celeron ES1-512-C1W0 comes with Windows 10 Home, 64-bit Operating System, Intel Celeron N2840 2.16 GHz Dual-core (2 Core) Processor, Led Backlit HD 1366 x 768 Pixels 15.6" LCD Display, 500 GB Hard Drive, 4 GB DD3L SD RAM, Intel HD Graphics with Shared Memory, ACER Aspire Celeron ES1-512-C1W0 also has Integrated speakers, Webcam, Microphone, 3-cell Lithium Polymer 45W 3220 mAh Up to 7 Hour Battrey, Power adapte, USB 3.0 x 1 No of USB 2.0 x 2, HDMI x 1, VGA x 1 by Acer.