Refers to a device that is used to read and write data using read/write heads from magnetic disk like devices. Floppy disk drive refers to the device at the front of the computer, floppy disks are inexpensive and are very handy for keeping small files backed up.

Hard disk drive refers to a device inside the computer where the bulk of the information is stored, the amount of data these can store vary, they range from 1Gb (in older machines) right up to 60Gb and beyond.

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