No, there are many manufacturers and distributors who supply 8 AWG wire in multi-conductor cables in stock or custom combinations.
Usually two cables total. Such as the SATA Cable and the power cable. As for how many wires are in those cables, it would depends on the connection. Such as IDE have 40 wires. Power cables are usually four pin. It all depends.
8
There are three! (i think)
This depends entirely on the use of the cable. In a full features RS-232 cable there would be 9 cables. But most hardware that uses a serial cable doesn't have the need for all of these wires so the number may vary. regards, tesseract
Wire bundles are cables composed of many wires (or wire pairs) in a rope like bundle. They are usually not enclosed in a protective jacket.
11 CABLES 630 mm2 single core
80 pins I believe this is wrong! IDE cables have 40 pins and 80 wires and IDE cables for notebooks have 44 pins
Yes, USB cables can be extended using CAT5 networking cables. You don't need to cut the wires and combine them yourself though, as there are many cables and hardware solutions available for purchase now.
There are many dangers present when doing electrical work including overhead power cables and electrical wires which are obvious and then there are the less obvious ones like cables underground and loose live wires. It is advisable not to do electrical work if you are not a trained professional.
A parallel ATA cable has 40 wires. Some high performance cables have 80, but there are only 40 distinct wires - with every other wire being grounded to minimize cross-talk.
Too many to even begin to list here, forget describing the architectures.