Founded in 1929 Disney primarily engages in child and adult entertainment. Starting with the production of animated motion-picture cartoons in the late 1940s Disney began to make also nature documentaries and live-action motion pictures, as well as short cartoons and live-action programs for television. In 1955 the company opened Disneyland, which was their first amusement park. Further openings of amusement parks in the U.S. and Europe followed. In 1996 Disney acquired Capital Cities/ABC Inc., which owned the ABC television network.
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The U.S. Data Encryption Standard (= DES) is the most widely used encryption algorithm, especially used for protection of financial transactions. It was developed by IBM in 1971. It is a symmetric-key cryptosystem. The DES algorithm uses a 56-bit encryption key, meaning that there are 72,057,594,037,927,936 possible keys.
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