September 2024
Intermediate to advanced
348 pages
9h 29m
Spanish
Content preview from Desarrollo del Mainframe Moderno
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Capítulo 4. El Lenguaje COBOL
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COBOL es el lenguaje estándar para el desarrollo de aplicaciones de mainframe. Tiene el tipo de características que son importantes para los casos de uso empresarial, como la gestión de trabajos de procesamiento por lotes y transacciones a gran escala.
El lenguaje COBOL tiene más de 350 comandos, y muchos de ellos no necesitarás conocerlos. Por eso en este libro cubriremos un número limitado. Pero esto no debe implicar que estés en desventaja. Nos centraremos en los comandos básicos que necesitas conocer para las aplicaciones del mundo real.
Antecedentes de COBOL, en breve
COBOL es uno de los lenguajes informáticos más antiguos. Sin embargo, se ha mantenido robusto a lo largo de los años y sigue siendo fundamental para la informática empresarial.
Las raíces del lenguaje se remontan a finales de los años 50, cuando surgieron diversos lenguajes informáticos. Muchos de estos lenguajes eran complejos. Esto significaba que su desarrollo llevaba mucho tiempo y era caro.
Se necesitaba un lenguaje estándar para el procesamiento de datos. Para conseguirlo, el Departamento de Defensa de EEUU se unió a un grupo de empresas informáticas -incluidas IBM, Burroughs Corporation, Honeywell y RCA-, así como a académicos y clientes, para formar el comité de la Conferencia sobre Lenguajes de Sistemas de Datos (CODASYL). Este tipo de comités han sido esenciales ...
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