We like hard drives and devices that support dual hard drives, so naturally we start by examining the new iMac's 1 TB drive.

By switching from a traditional 3.5" desktop hard drive to a 2.5" laptop drive, Apple designers were able to clear a lot of real estate inside the iMac.

Smaller laptop hard drives are also often quieter, thanks to smaller moving parts than their big brothers.

Apple turned to HGST—Western Digital's acquisition of Hitachi—to manage the iMac's spinning storage.