A:
It would depend on the specs of your computer. If you have an HDMI or DVI port that can send a signal, it's likely that the TV will work just fine as a monitor. However, with the computer, you will need to use the computer's webcam for the Skype or Facetime options.
The cable question would be best addressed by a Best Buy Geek Squad Agent.
Thanks for your interest in Samsung televisions.
--Mr.Samsung