Название: Modern Fortran: supplemented and revised, Third edition Автор: Morgan Miguel
Издательство: Amazon.com Services LLC
Год: 2020
Страниц: 495
Язык: английский
Формат: epub, azw, mobi
Размер: 10.1 MB
Programming in the early days of computing was tedious in the extreme. Programmers required a detailed knowledge of the instructions, registers, and other aspects of the central processing unit (CPU) of the computer for which they were writing code. The source code itself was written in a numerical notation. In the course of time mnemonic codes were introduced, a form of coding known as machine or assembly code. These difficulties spurred a team led by John Backus of IBM to develop one of the earliest high-level languages, Fortran. Their aim was to produce a language which would be simple to understand but almost as efficient in execution as assembly language. In this they succeeded beyond their wildest dreams. The language was indeed simple to learn, as it was possible to write mathematical formulae almost as they are usually written in mathematical texts.
The name Fortran is a contraction of ‘formula translation’. This enabled working programs to be written more quickly than before, for only a small loss in efficiency, as a great deal of care was devoted to the generation of fast object code. But Fortran was revolutionary as well as innovatory. Programmers were relieved of the tedious burden of using assembler language, and computers became accessible to any scientist or engineer willing to devote a little effort to acquiring a working knowledge of Fortran. No longer was it necessary to be an expert on computers to be able to write application programs.
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