Miniature Hard Disk - Both internal and external hard disk are available in miniature sized. These tiny hard disk have from factors of 1,8 inch, 1 inch, and 0,85 inch. evice such as portable media players, digital camera and smartphone often have internal miniature hard disk, which provide greater sronge capacities than flash memory. External hard disk that are smaller in sized capacity, which also contain miniature hard disk, are sometimes called a pocket hard drive because they enable mobile users easily to transport photos and other files from one computer to another.

When a device containing a miniature hard disk is connected to a computer, the user can read from and write on the device as a separate drive. Miniature hard disks have stroge capaciries that range from 1 GB to 320 GB. Miniature hard disks with the generator stronge capacities typically use perpendicular recording.