1 TECHNOLOGY IN ANALYSIS AND SOFTWARE DEVELOPMENT Apprentice HALBER LEONAR PINEDA RAMIREZ Tutor JOSE REINALDO DUQUE SERNA Ficha:2721432 SERVICIO NACIONAL DE APRENDIZAJE SENA VIRTUAL MODE TECHNOLOGY IN ANALYSIS AND SOFTWARE DEVELOPMENT MATERIALS AND TESTING CENTER – CAPITAL DISTRICT 2 TABLE OF CONTENTS Front page ……………………………………………………………………………1 Table of Contents ……………………………………….…………………...……….2 Introduction ………………………………………………………………………..…3 Chronicle …………………………………………….…….…………………………4-5 3 Introduction Structure of the chronicle: The chronicle is an essentially narrative genre, where a story is told in which characters participate and a conflict develops in a certain space and time. Therefore, its textual structure adheres to the three Aristotelian principles of beginning, middle and end. 4 Chronicle John Backus Born in Philadelphia, December 3, 1924 was an American computer scientist. He then enlisted in the army, where he received medical training and was a neurosurgery assistant at a hospital in Atlantic City, and then began medical studies, which he also left unfinished. Transferred to New York, he took a radiotechnics course and entered Columbia University, from which he graduated in mathematics in 1949 After solving a puzzle presented to him by the interviewer, Backus was finally hired by IBM in 1950 to work in the Applied Science Department with the select group of engineers dedicated to the Selective Sequence Electronic Calculator (SSEC), which at that time was a computer that did not it had memory for storage and the programs entered on a perforated paper tape. His first job as a programmer was to calculate the position of the Moon by means of a Fourier series of about 1000 terms. In 1953 Backus met the IBM 701, the successor to the SSEC that did not facilitate scientific calculations, and developed the Speedcoding language, the first to include a scale factor that allows floating point numbers to be used. Winner of the Turing Award in 1977 for his work on high-level programming systems, especially for his work on the development of FORTRAN. 5 Backus was in charge of directing a research project at IBM for the project and realization of a programming language closer to normal mathematical notation. Backus was a very active member of the international committee that was in charge of the ALGOL language project. In 1985 he was admitted as a member of the American Academy of Arts and Sciences. And in 1989 the Université Henri-Poincaré de Nancy (France) named him Doctor honoris causa. In 1993, two years after retiring from IBM, he was awarded the Charles Stark Draper Prize, the highest recognition awarded by the National Academy of Engineering in the US for the giant step Backus took in the world of computing. . In 1998 he was awarded as a Fellow of the Computer History Museum for his development of FORTRAN. And in 2007 an asteroid was named 6830 Johnbakhus in his honor. John Backus retired in 1991 and passed away at his home in Ashland, Oregon, on March 17, 2007.
