Cortana is a digital assistant created by Microsoft and first released in 2014. It was initially available on Windows Phone 8.1, but has since been made available for other platforms including Android and iOS devices.
Cortana is designed to be an intelligent personal assistant that can help users with tasks such as scheduling reminders, setting alarms, searching the web, sending emails or texts messages and more.
The main feature of Cortana is its natural language processing capabilities which allow it to understand commands given by voice or text input from the user.
This makes it much easier for people to interact with their digital devices without having to type out every command they want performed – instead they just need to speak into their device’s microphone or type what they want done into its search bar!
Additionally, Cortana also uses machine learning algorithms so that over time it can become better at understanding a user’s individual needs and preferences in order provide them with personalized results when performing searches online or giving recommendations based on past activities/searches etcetera..
In conclusion then; while there are many different types of artificial intelligence (AI) assistants currently available today – each offering unique features – Cortana stands out amongst them thanks largely due its natural language processing capabilities combined with powerful machine learning algorithms which enable users get more accurate results faster than ever before!