Apple on Friday unveiled a new MacBook Air laptop with a high - resolution screen . ` The products we make , combined with the apps that you create , can fundamentally change the world , '' Cook told developers in closing the keynote . ` The company also announced improvements to its website and ` ` . '' CEO Tim Cook led the presentation at Apple 's annual developers ' conference . Apple also unveiled new MacBook Airs plus operating systems with new features .
Apple on Friday unveiled a new MacBook Air laptop with a high - resolution screen . The company also announced improvements to its website and ` ` . '' CEO Tim Cook led the presentation at Apple 's annual developers ' conference . Apple also unveiled new MacBook Airs plus operating systems with new features .