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Definition: ribbon cable
A thin, flat, multiconductor cable that is widely used for internal peripheral connections in electronic systems. In a PC, a 34-wire ribbon connects the floppy drive (if present) to the motherboard. A 40-wire cable connects the IDE (ATA) CD drive, and an 80-wire cable is used for the IDE (ATA) hard disks.
Ribbon Cables
These are the common ribbon cables used internally in a PC to connect hard disk, CD and floppy. For external connections, round-shaped cables are preferred over ribbon ones.