From the human perspective, the effectiveness with which a person can analyze a situation or solve a problem.
Information derived for some purpose. See DOD intelligence glossary
From the computer perspective, intelligence is having processing capability. In this context, every electronic device with a microprocessor is "intelligent." See smart
A Twist of Terminology
Because every device with a CPU chip is said to have "intelligence," this coffee maker is intelligent, but the robot that roams the aisles of the supermarket on its own looking for spills and stopping when a person walks by only has "artificial" intelligence.