请输入您要查询的字词:

 

单词 second generation
释义
second generation

Computer
  • of computers. Machines whose designs were started after 1955 (approximately) and are characterized by both vacuum tube (valve) and discrete transistor logic. They used magnetic core main memory. By this time a wider range of input/output equipment was beginning to be available, with higher-performance magnetic tape and the first forms of online storage (magnetic drums and early magnetic disks). Models of such online storage devices include magnetic drums in the UNIVAC LARC and 1105, and early disks in the IBM 1401–1410. During the second generation, initial efforts at automatic programming produced B0, Commercial Translator, FACT, Fortran, and Mathmatic as programming languages, these in turn influencing the development of the third generation languages—Cobol and later versions of Fortran. See also Atlas.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/10/1 8:00:22