I have 3 devices and all of them seem to have different PC sync ports. Now which is which and what are the names of these ports? What cable is needed to connect all of them? I am attaching a picture of them.
Why do you think they're different? They all look like female PC sync ports and they'll fit the same PC connector. There really is only one "kind" of PC sync port; there's even an ISO standard for it: ISO 519.
The only possible difference is whether it's "screwlock" (i.e., has threads on the outer-most side to secure the connector) or simply friction-fit, but I can't tell that from the pictures. I just know my 5DMkII isn't screwlock, and my YN-622Cs are. And that only matters if you have screwlock cables. But the electrical connections are identical for both. IIRC, it's sync on the inner post, and ground on the outside ring.
The three pictures you have included are all the same type connector, a female PC sync connector. A male PC to male PC cord will connect to any of them.
PC in the context of flash photography has nothing to do with a personal computer. It is an abbreviation of Prontor/Compur. Prontor has its origins in the Italian word pronto (quick) and was a brand of shutter produced by Alfred Gauthier in the 1950s. Compur, derived from the word compound, was the shutter brand of the Deckel Company. Both companies were based in Germany and both counted Zeiss as an influential stockholder when they introduced the standard 1/8"-inch coaxial connector for shutter/flash synchronization.