No More Mac Accelerometers
Apple stopped putting accelerometers into MacBooks. Never in the new MacBooks, not since 2009 in the Air line, not since 2013 in the Pros.
He was using it to implement the deviceorientation property in Google Chrome.
All Intel-based Mac notebooks have Sudden Motion Sensor technology. […] Computers with Solid State Drives (SSD) or Flash Storage do not use SMS as the drives have no moving parts.
