I am the origional owner of this mini laptop, it is missing the up arrow (but the key will register if the area is pressed). This is from 2009, so it is not viable for everyday use, yet some people install a small overhead 32-bit Linux operating system (not included) to get more life out of it.
The HP Mini 311-1000 Laptop is a compact notebook with a 11.6-inch screen, powered by an Intel Atom N280 processor running at 1.60 GHz. It comes in a sleek black color with 2 GB of RAM, a 160 GB HDD, and Windows 10 Home operating system. With integrated NVIDIA ION LE graphics.