Phil Storrs PC Hardware book

Floppy disk drive hardware

3.5 inch Floppy Disk Drives use a 34 wire header (pin) connector to connect to the Floppy Disk Drive Interface. The power connector is a small four pin device, and modern 3.5 inch drives only use the +5 volt supply.

A 3.5 inch floppy disk drive uses a 34 pin header (pin) connector to the interface

A modern 5.25 inch Floppy Disk Drive uses a direct drive motor to rotate the floppy disk media. 5.25 inch drives use a 34 wire edge connector to connect to the Floppy Disk Drive Interface, and a large 4 pin power connector to supply +5 volt and +12 volt to the drive.

A typical direct drive floppy disk drive motor.

The motor rotates the disk media at a constant speed.

A floppy disk drive interface cable has a 34 pin header socket on the interface end

The PC hardware Gallery The opening index The PC Glossary PC Acronyms

Book one index Book two index Book three index Book four index Book five index

Copyright © Phil. Storr, last updated 26th December 1998