Castor Cracking Group (CCG) was a demo group from Sweden, and were active on the ZX Spectrum during 1986-88. They were one of the first groups for the ZX Spectrum with their release of Castor Intro early in 1986.
Originally they named themselves after Castor in the constellation Gemini, but despite having "Crack" in their name, they actually (at least according to themselves) never cracked any software.
Technically, their demos were not very advanced - they even programmed many of them in BASIC and compiled the result for release. However, their significance lies in their early entry onto the scene.
Famous quotes containing the words cracking and/or group:
“All round and round does the world lie as in a sharp-shooter’s ambush, to pick off the beautiful illusions of youth, by the pitiless cracking rifles of the realities of age.”
—Herman Melville (1819–1891)
“Unless a group of workers know their work is under surveillance, that they are being rated as fairly as human beings, with the fallibility that goes with human judgment, can rate them, and that at least an attempt is made to measure their worth to an organization in relative terms, they are likely to sink back on length of service as the sole reason for retention and promotion.”
—Mary Barnett Gilson (1877–?)