I don't know but it boots up to a normal Windows desktop. I hated win8 with a passion but 8.1 is better and this one is very Win7-user friendly. I download Windows Live Mail to it last night and will set it up to retrieve my main email addresses. I'll be trying to use it to enter a couple of credit card kiosk shops tomorrow at the airport (I'll have my full size laptop with me as well to do tax returns on but I'm going to see if I can do the whole shop report on this one). Since there is a camera built in, I hope to not have to use the cell phone or scanner and bounce things through Drop Box to get them into a report. I'm hoping it will do the whole thing. It's really just a miniature computer and works just like the big ones.
If I add the Kindle reading app to it, I won't have to carry my Kindle when I travel any more. If I set up Skype (which came on it automatically) I could even use it for a phone in a pinch.
I just need to keep my wifi with me so I don't have to hunt down public hotspots that might not be secure. And it takes the same charging plug as my phone, kindle, and wifi.
Time to build a bigger bridge.