What is the device number of the first floppy disk connected to a commodore 64?

The first floppy disk drive for the Commodore 64 was the Commodore 1541, which was typically assigned the device number 8. This number was used in the BASIC programming environment on the C64 to access the floppy disk drive for loading and saving files. The 1541 became a popular and iconic accessory for the Commodore 64.