" Sold in shopping malls and discount stores and not just small computer stores -- the norm for the time -- the C64 became many people's gateway into the world of computers, said Brian Bagnall, author of "On the edge: The spectacular rise and fall of Commodore.

CNN: Commodore 64 still loved after all these years

"It's more of a gateway to cream cheese or peanut butter, " says David Grotto, a nutritionist and author of The Best Things You Can Eat.

BBC: Who, Why, What: Can foods have negative calories?