Technologies in 2001: A Space Odyssey well, such as a nervous breakdown—as Hal did in the film. Clarke noted that, contrary to popular rumor, it was a complete coincidence that each of the letters of Hal's name immediately preceded those of IBM in the alphabet. The meaning of HAL has been given both as "Heuristically programmed ALgorithmic computer" and as "Heuristic ALgorithmic computer". The former appears in Clarke's novel of "2001" and the latter in his sequel novel "2010". In computer science, a heuristic is a programmable procedure not necessarily based on fixed rules, producing informed guesses often using trial-and-error. The results can be false such
2001: A Space Odyssey (film) for its scientifically accurate depiction of spaceflight, pioneering special effects, and ambiguous imagery. Sound and dialogue are used sparingly and often in place of traditional cinematic and narrative techniques. The soundtrack incorporates a number of pieces of classical music, among them "Also sprach Zarathustra" by Richard Strauss, "The Blue Danube" by Johann Strauss II, and works by Aram Khachaturian and György Ligeti. "2001: A Space Odyssey" was financed and distributed by American studio Metro-Goldwyn-Mayer, but filmed and edited almost entirely in England, where Kubrick lived, using the facilities of MGM-British Studios and Shepperton Studios. Production was subcontracted to Kubrick's production