How big is God's computer He used to direct and track the Star of Bethlehem before and after the birth of Jesus?
The wise men left Herod’s chambers and went on their way. The star they had first seen in the East reappeared—a miracle that, of course, overjoyed and enraptured the wise men. The star led them to the house where Jesus lay.
Matthew 2: 9-10 (The Voice)
The reality is God does not have a computer, He has His fingers.
When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained;
What is man, that thou art mindful of him? and the son of man, that thou visitest him?
Psalm 8:3-4 (KJV)