What is Microsoft Cortana?

Cortana is a personal digital assistant, a kind of silicon secretary who can help make your life easier. Instead of searching for things you ask Cortana - so if you want to know what the weather forecast is, how many pounds are in a kilo, who's winning the football or when Jim's birthday is, you'll ask and Cortana will give you the answer.
Microsoft says that Cortana will be socially intelligent, so for example you'll be able to set a reminder to ask somebody about something, and the reminder will pop up if you text, call or otherwise interact with that person.
How does it work?

Cortana can be voice activated or you can type your questions or commands, and she'll respond in kind: silently if you type and verbally if you talk. What is more to it? It has PREDICTED all football results at the ongoing FIFA WORLD CUP 100 percent correctly. can this be the final answer to sport betting on Nairabet, 1960bet and co if so then guys who are into sports betting should be ready to make cool cash , is it too sure ?? sure bet? too sure Baba Ijebu !! LOL
For Cortana predictions.
http://naijahood..com/2014/07/microsoft-cortana-predicted-12-of-12.html

it says brazil will beat holland lets wait and see

Cortana got 14 of 15 predictions correct

Cortana for sale

chessguru: Cortana for sale

Location?