The floppy drive subsystem consists of three main parts: (l) the electronic circuits orthe controller, (2) the 34-pin ribbon cable, and (3) the floppy drive. The electronic circuits give the floppy drive instructions such as to read particular data or to write any desired data. The electronic circuits can be on an adapter or built into the motherboard. In modern computers, the electronic circuits are normally built into the motherboard. A technician needs to know that the control circuits can go bad. The floppy cable connects the floppy drive to the electronic circuits.
The floppy drive is the device that allows saving data to disk media. Troubleshooting ,md installing floppy drives involves these three main areas and the media. Media refers' to the disks inserted in the floppy drive. Floppy drives are classified in two ways: by the physical size of disk used (3.5" or 5.25") and the storage capacity of disk used (360KB, 1.2MB, nOKB, 1.44MB, and 2.88MB). Note that today's floppy drives are 3.5" 1.44MB.