What is localhost:8000 as used in Codecademy (for AngularJS and Ruby

ruby 8000The default timestamp rate is 8000 Hz, but other rates may be defined. RTP & Volatility. SIP-ALG-Detector is an utility to detect routers with SIP ALG enabled. Extra 10%A ruby laser is a solid-state laser that uses a synthetic ruby crystal as its gain medium. The first working laser was a ruby laser made by Theodore H.