The older method was by firewire. Most commonly these days is by USB or using a crossover cable. A crossover cable is basically an Ethernet cable terminated to T568A standards on one end and T568B standards on the other end. For the end user, they make user-friendly software to help configure the connections as well.
There is no joint between brain and spinal cord. The spinal cord is a mass of neurones that is situated in the backbone which feeds in to the brain via neurones.
not sure what you mean by "which of these" but the umbilical cord connects the embryo to the mother.
That would depend on your television and computer. Older computers have an S-Video port as do most televisions.
Your spine
The cord that connects your camera to your TV is called a video out cable.
your spine is what is correct in a test
Well, LAN means multiple computers are wired to a router that connects to the internet. So, you would need to place the computers so the Ethernet cord can be connected to the router
Brain stem
The brain stem is what connects the spinal cord to the rest of the brain. More specifically, the medulla oblongota is what directly connects it.
Because when the clorophyll connects to the spinal cord, it interacts with the amoeba.
The ralpehripe nervous system connects the brain and spinal cord to other body parts.
The umbilical cord.