What was Disney's first computer animated movie?

First cartoon short: Either Little Red Riding Hood, The Four Musics of Bremen, Puss in Boots, and Cinderella or Tommy Tucker′s Tooth, all made in 1922 under his "Laugh-O-Grams" label. Most of the short's prints are lost, so it may not be possibly to find the *exact* first cartoon he made.

First cartoon character: Oswald the Lucky Rabbit