define artificial intelligence. What are its …

Artificial Intelligence is the branch of computer science dealing with the reproduction or mimicking of human-level intelligence, self awareness, knowledge, conscience, thought in computer programs.

Applications of Artificial Intelligence:

Optical character recognition

Handwriting recognition

Face recognition

Speech recognition

Computer vision, virtual reality, image proceesing.

For example: If you want to train a computer to recognize a pen from a pencil. Pens and pencils come in a variety of sizes, shapes, colors etc. Previously, you would have hard-coded the computer to test for every single one of those combinations before reaching a decision. With Machine Learning, you can just train it on 50 pens and pencils and it’ll infer, on its own, which attributes differentiate them from each other, for example, a lack of lead tip. This saves engineers hours and hours of coding and reduces the cost of development.