Lenovo IdeaCentre C40-05, 21.5", Full HD, AMD A6, 4 GB, 500 GB, Windows 8.1 Lenovo IdeaCentre C40-05. Product type: All-in-One PC. Display diagonal: 21.5", HD type: Full HD, Display resolution: 1920 x 1080 pixels, Screen shape: Flat. Processor family: AMD A6, Processor frequency: 1.8 GHz. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Storage media: HDD. Built-in camera. Optical drive type: DVD-RW. Operating system installed: Windows 8.1. Product color: White https://www.pcmag.com/reviews/lenovo-c40 The Lenovo C40 ($549.99 as tested) is an affordable all-in-one desktop PC with a 21.5-inch HD (1,920-by-1,080-resolution) touch screen, a quad-core AMD processor, and excellent connectivity options, including HDMI-in and HDMI-out ports and 802.11ac Wi-Fi... Full HD touch display, HDMI-in and HDMI-out ports, 802.11ac Wi-Fi, User serviceable, Very little bloatware, Wired mouse and keyboard, Reflective screen The Lenovo C40 gives you everything you need in an affordable all-in-one PC, along with a refreshing level of future-proofing...