Black hat Black hat A black hat hacker (or black-hat hacker) is a hacker who "violates computer security for little reason beyond maliciousness or for personal gain". The term's origin is often attributed to hacker culture theorist Richard Stallman (though he denies coining it) to contrast the exploitative hacker with the white hat hacker who hacks protectively by drawing attention to vulnerabilities in computer systems that require repair. The black hat/white hat terminology originates in the Western genre of popular American culture, in which black and white hats denote villainous and heroic cowboys respectively. Black hat hackers are the stereotypical illegal hacking
Colour recovery the broadcast and release of colour-recovered episodes of "Dad's Army" and "Doctor Who". "Example of the chroma dot reconstruction:" Colour recovery Colour recovery (or colour restoration) is a process which can restore lost colour, specifically to television programmes which were originally transmitted from colour video tape, but for which only black & white copies remain archived. Not to be confused with colourisation, colour recovery is a newer process and is fundamentally different from colourisation for several reasons. Firstly, colour recovery can only be performed if the originally transmitted colour signal can be reconstructed or recovered from some source, whereas this