“Weird.”

That was the one-word answer given by Apple (AAPL) chairman Arthur D. Levinson when asked to describe his experience running the company’s board of directors since Steve Jobs’s death. Levinson, who joined the board in 2000, was a colleague and close friend to Apple’s legendary founder and CEO. On Tuesday, he said that Jobs’s absence remains tough to ignore even as the company has continued introducing new products and making fresh announcements.