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Calculator spelling is an unintended characteristic of the seven-segment display traditionally used by calculators, in which, when read upside-down, the digits resemble letters of the Latin alphabet. Each digit may be mapped to one or more letters, creating a limited but functional subset of the alphabet, sometimes referred to as beghilos (or ...
Upside-down marks, simple in the era of hand typesetting, were originally recommended by the Real Academia Española (Royal Spanish Academy), in the second edition of the Ortografía de la lengua castellana (Orthography of the Castilian language) in 1754 [3] recommending it as the symbol indicating the beginning of a question in written Spanish—e.g. "¿Cuántos años tienes?"
By 1970, a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first handheld calculator was a 1967 prototype called Cal Tech, whose development was led by Jack Kilby at Texas Instruments in a research project to produce a portable calculator. It could add ...
Knuckle mnemonic for the number of days in each month of the Gregorian calendar.Each knuckle represents a 31-day month. A mnemonic device (/ n ə ˈ m ɒ n ɪ k / nə-MON-ik) [1] or memory device is any learning technique that aids information retention or retrieval in the human memory, often by associating the information with something that is easier to remember.
Spanish names are the traditional way of identifying, and the official way of registering, a person in Spain. They are composed of a given name (simple or composite) [a] and two surnames (the first surname of each parent). Traditionally, the first surname is the father's first surname, and the second is the mother's first surname.
Silvia Pinal Hidalgo [1] was born in Guaymas, Sonora, on 12 September 1931. [8] [9] [10] Her parents were María Luisa Hidalgo Aguilar and Moisés Pasquel.Pasquel was an orchestra conductor at radio station XEW by whom Hidalgo Aguilar became pregnant when she was 15 years old.