Did you know we can also use computers to create art. You can use your finger like a pen or paint brush on the screen of a tablet or smartphone. Slide 1 of 3, , Erasers can be used to rub out ...

This portrait was created by computer, so is it really art and is it any good? Last year a portrait of Edmond Belamy sold for $432,000 (£337,000). A bit steep, you might think, for a picture of ...