4.
  • Caption: The sticker reveals that the drive is a Hitachi Deskstar, model #IC35L120AVV207-0, with a speed of 7200 RPM and a capacity of 123.5 GB. The label also indicates it has 241,254,720 sectors (which add up to around 115 GB of actual storage capacity), 16383 cylinders, 16 logical read/write heads, and 63 sectors per track. Clearly Hitachi is using some other way to calculate the total number of sectors than cylinders x heads x sectors/track. (January 1, 2010)