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Floppy Disk Controller: Difference between revisions
Added table with more information about different FDCs
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== Overview and Documentation ==
The Floppy Disk Controller (FDC) is a (legacy) device that controls '''internal''' 3.5/5.25 inch floppy disk drive devices on desktop x86 systems.
There are a range of chips that have been produced for this function
advanced, and has been produced since 1991. For more recent systems, a model of that chip has been embedded in the motherboard chipset.▼
{| {{wikitable}}
|Manufacturer and part number
|Introduced in
|Used in
|-
|NEC µPD765
|1981
|IBM PC original, IBM PC/XT
|-
|Intel 8272A
|1982
|(any system which used µPD765 may use 8272A since they are 100% compatible)
|-
|Intel 82078A
|1994
|IBM PC/AT
|-
|Intel 82077A
|1994
|IBM PS/2
|}
▲Of these chips, the 82077AA is the most advanced, and has been produced since 1991. For more recent systems, a model of that chip has been embedded in the motherboard chipset.
(So pay close attention to that datasheet, below.)
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