Acer Desktop Computer Revo Base RN66-UR11 Intel Core i3 5th Gen 5005U (2.0 GHz) 4 GB DDR3L 500 GB HDD Intel HD Graphics 5500 FreeDOS

Excellent little machine for a linux server. Installed fedora 25 server with no hiccups, works great. The free DOS OS that it comes with is useless, but it's much better than shipping with windows (which I would have to pay for and would not use).

I just wanted to warn you that this is not a Windows PC, it comes with a little known operating system (OS) called FreeDOS. It only runs DOS programs, the last time I saw a DOS program was 20 years ago. You can install Windows but you will have to buy the retail package for about $125.You could buy a small factor PC with Windows 10 installed for much less than the price of this PC.On the positive side it comes with 4GBs of ram installed on one slot, so you could easily upgrade it to a 8GBs by just adding 4 more GBs. Many of this systems come with both slots occupied, so in order to upgrade it you have to remove and lose the installed memory.

Has a older Intel Hazwell CPU which is actually a mobile CPU such as you will find in notebooks. Model of CPU 5005u. Its OK, for basic web surfing, streaming video and email. Not for gaming or heavy CPU work like video editing. As others say it has no operating system to speak of. Acer installs Free DOS as a means to get around a requirement to have some type of OS. Its not a graphical OS, everything is run from terminal command. Surprised Acer did not install at least a Linux distribution that people could use. Yes, you'll have to install something like a free Linux distribution or buy a Windows retail copy. Acer has Windows 10 drivers if needed. I use this PC to test out many different operating systems so I was not opposed to it having no usable OS.