10 Apple Acquisitions that made Their Mark

Apple isn't known as an acquisitive company, even when it's sitting on a huge pile of money. So in February, when Apple COO Tim Cook downplayed the notion that Apple's approximately $40 billion in cash reserves could trigger a shopping spree, no one was surprised.

When Apple does buy companies, it's almost always tight lipped about how they'll fit into its strategy. But when you look at Apple's history, some acquisitions stand out in terms of adding important features to existing product lines or opening doors into new markets. Here we offer 10 examples of Apple acquisitions that made their mark.