It's been a long time since carburetors controlled the flow of fuel into the engines of new cars. Today, all new cars use some form of electronic fuel injection. How did this innovation come about? The introduction of computer chips into cars allowed for the kind of precision that fuel injectors needed to be really successful. This article from Edmunds.com explains a little about the history of fuel injection, the main components that go into an injection system, and the advantages over old-style carburetors.