Router
You should use the USB cable that came with the device you own. But make sure that the USB cable is the right size on both ends, because not every USB cable can fit every device.
That should be fine. The device that you use to connect the two wires should be approved for AL- Cu connections. If you are using a wire-nut then check that it is approved as there are some that are not. If it is a direct connect to the device via terminal screws then check the spec. sheet that came with the smoke alarm.
No, you should use a bus to connect a capture card to a computer. If you're asking if you should use the S-video port to connect the video device playing the video you want to capture to the card... sure, it's one option, and if your capture card and video device support S-video, it's likely to result in a higher-quality image than using the composite video port will.
Use a device called the iMic if you are trying to connect to a mac. It works perfectly.
To connect a Bluetooth device to a Mac you need to ensure that Bluetooth is turned on in the Mac's System Preferences and that it is Discoverable. Bluetooth devices should then find the Mac by its name and pair with it.
A piece of equipment that you can connect to your computer and use with it, for example a printer.
The network device that connect multiple networks that use the same protocol is a ROUTER.
To connect a wireless microphone to your device, first turn on the microphone and ensure it is in pairing mode. Then, go to the Bluetooth settings on your device and search for the microphone. Once the microphone appears in the list, select it to establish the connection. You may need to enter a pairing code if prompted. Once connected, the wireless microphone should now be ready to use with your device.
To connect a PC to a switch you should use a straight through UTP cable.
Use the wire cable to connect with it if you have a USB port in your computer.
ISDN Adapter
For your device, you should use a standard HDMI power cord.