South African hacker history hacktivists equal to the task. That force will now break into government information vaults and bring to light the evidence that will reveal corruption and nefarious doings." Through a series of tweets 'data dump' using the account @DomainerAnon, explained that they hacked into the website “for the 34 miners killed during clashes with police in Marikana on August 16, 2012”. South African hacker history A brief history of computer hacking in South Africa. Note: A distinction needs to be made between a "white hat" hacker who hacks out of intellectual curiosity, and a "black hat" hacker who has ulterior motives.
Colour recovery frequency, known as the "colour subcarrier". Black and white televisions do not decode this extra colour information in the subcarrier, using only the luminance to provide a monochrome picture. However, due to limited bandwidth in the video channel, the chrominance and luminance signals bleed into each other considerably, resulting in the colour information showing up visibly as Chroma Crawl, or Chroma dots on black & white TV sets. This is normally considered a nuisance in analogue broadcasting. However, since telerecordings were made from black & white TV screens and technicians at the time often decided not to apply a filter