Most modern computers do not have any floppy drives at all. Ones made before 2001 generally had one. Two floppy drives was common only in very old computers with no fixed storage device.
Normally a floppy drive interface can be used to connect two floppy disk drives. However this may vary from system to system, some systems may also have two interfaces. It may be necessary to purchase a floppy drive cable with two connection headers.
Many newer systems don't have any ribbon cables at all. Ribbon cables were used for IDE drives, SCSI drives, and floppy drives. The number of cables will depend on the number of drives in the system (16 drives per SCSI cable, 2 per IDE cable, and 2 per floppy cable).
Computers made today generally do not have any floppy drives at all. PCs traditionally had 2 floppy drives (A: and B:) but might have only one of these. The original Mac had 1 floppy drive. Early microcomputers could frequently have as many as 4 floppy drives. (I had one with this capability but I never connected more than 3 floppy drives, these were 8 inch double sided double density drives).
Normally a floppy drive interface can be used to connect two floppy disk drives. However this may vary from system to system, some systems may also have two interfaces. It may be necessary to purchase a floppy drive cable with two connection headers.
24. That's with A: and B: reserved for the floppy drives. 26 might be possible if you disable the floppy controller in the system.
It makes it much easier to copy a floppy disk.
The only floppy drive system commercially available today is the 3.5" floppy disk drive. Previously there were both 5.25" and 8.00" disks/drives also available for PC's.
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The system identifies the correct designation for a floppy drive through the BIOS or UEFI firmware during the boot process. It scans for connected drives, assigns a designation based on the detected drive's order and type, typically labeling them as A: or B: for floppy drives. The operating system then references these designations to access the floppy drive for reading or writing data. If multiple drives are present, the system uses the configuration settings to prioritize which drive gets which designation.
Floppy drives do not typically need drivers. Any operating system on a typical PC can interface with the floppy controller integrated into the motherboard. All modern operating systems include drivers to interface with drives connected via USB.
240 hard drives, 20 floppy drives and 40 CD-ROM drives.
Some are, not many however.