The document outlines the key characteristics of computers, which include automation, speed, accuracy, diligence, versatility, memory capacity, lack of intelligence quotient, and absence of emotions. Computers perform tasks independently once instructed, operate at incredible speeds compared to humans, and maintain high accuracy levels, though errors can occur primarily from human input. Additionally, they can execute a wide range of jobs with programmed instructions but do not possess feelings or the ability to make decisions autonomously.