This is a small PC, A4 size or smaller. It comes with Microsoft Office, so you can use Word, Excel, PowerPoint, etc. right away. It's suitable for light tasks such as web browsing and document creation. DELL Latitude 3160 11.6-inch non-glare LCD Celeron N3050 1.60GHz Memory 4GB (DDR3L) - can be upgraded HDD 500GB USB 3.0 x2, HDMI, SD slot, Web camera, Bluetooth, Wireless LAN, etc. Windows 11 Pro and Microsoft Office Home and Business 2019 have been clean installed, activated, and updated. The built-in battery is dead. Please use the AC adapter. Also, the non-slip rubber on the bottom has deteriorated and been removed. There is no problem with use. The rating is set low, but I think it has a clean appearance with little wear and tear for its age, including the keyboard. *For those who like tinkering with PCs* As shown in the photo, an M.2 socket is built-in (operation confirmed). You can also upgrade the memory and HDD, so you can significantly improve performance. Includes the main unit and the original AC adapter.