[Ans] what was the first fully computer animated feature film?

Step 1 : Introduction to the question"what was the first fully computer animated feature film?"

Animation is the process of making the illusion of motion and the illusion of change by means of the rapid display of a sequence of images that minimally differ from each other. The illusion—as in motion pictures in general—is thought to rely on the phi phenomenon. Animators are artists who specialize in the creation of animation.

Step 2 : Answer to the question "what was the first fully computer animated feature film?"

Toy Story is a 1995 American computer-animated buddy comedy adventure film produced by Pixar Animation Studios and released by Walt Disney Pictures. It was directed by John Lasseter in his directorial debut, the first feature-length computer-animated film and the first theatrical film produced by Pixar. 

Step 3 : Other interesting facts related to the question "what was the first fully computer animated feature film?"

Director John Lasseter's first experience with computer animation was during his work as an animator at Walt Disney Feature Animation,

aim the 1988 Academy Award for Best Animated Short Film, the first computer-generated film to do so.

Catmull and fellow Pixar co-founder Alvy Ray Smith had long wanted to produce a computer-animated feature