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计算机技术的第一次出现在美国的1…
One of the first occurrences of computer technology occurred in the USA in the 1880s. It
was due to the American Constitution demanding that a survey is undertaken every 10 years.
As the population in the USA increased, it took an increasing amount of time to produce the
statistics. By the 1880s, it looked likely that the 1880 survey would not be complete until
1890. To overcome this, Herman Hollerith (who worked for the Government) devised a machine
which accepted punch cards with information on them. These cards allowed a current
to pass through a hole when there was a hole present.
- 2022-02-20 02:14:45下载
- 积分：1
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一种低噪声可变增益放大器。文中介绍了以AD603 为核心构成的低噪声可变增益放大器的实用电路, 通过模式选择、
引脚编程, 可选择不同的带宽, 以及得到不同...
一种低噪声可变增益放大器。文中介绍了以AD603 为核心构成的低噪声可变增益放大器的实用电路, 通过模式选择、
引脚编程, 可选择不同的带宽, 以及得到不同的增益。通过对增益控制方式的选择, 可得到最佳的信
噪比。-A low noise variable gain amplifier. In this paper, in order to AD603 as the core consisting of low-noise variable gain amplifier circuit of the practical, through mode selection, lead programming, choice of different bandwidth, as well as different gain. Way to gain control through the choice of the best available signal to noise ratio.
- 2023-01-06 10:35:03下载
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MFC Windows程序设计(第二版)英文原版电子书
MFC Windows程序设计(第二版)英文原版电子书-MFC Windows Programming (2nd edition) English original e-books
- 2022-01-26 04:01:56下载
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Some knowledge of computers in the hope of learning to all of us help Ha!
电脑方面的一些知识，希望对大家的学习有所帮助哈！-Some knowledge of computers in the hope of learning to all of us help Ha!
- 2023-08-26 17:20:05下载
- 积分：1
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The_C_Programming_Language__2nd_Edition Part 3
The_C_Programming_Language__2nd_Edition Part 3
- 2022-04-02 01:31:16下载
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嵌入式系统设计中使用的8051个微控制器
Embedded System Design Using 8051 Microcontrollers
- 2022-04-21 00:45:15下载
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可扩展Web信息搜集系统的 设计、实现与应用初探 闫宏飞 北京大学网络与分布式实验室 2002年6月14日...
可扩展Web信息搜集系统的 设计、实现与应用初探 闫宏飞 北京大学网络与分布式实验室 2002年6月14日-scalable Web to collect information in the design, implementation and application of Wang Fei Yan Beijing University Laboratory Network and Distributed June 14, 2002
- 2022-07-12 16:44:45下载
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CSDN论坛
CSDN论坛-算法精华.chm文件
有各种各样的算法,如:最短路径有两种不同的提法：一是从某个顶点到其它顶点的最短路径，二是每一对顶点的最短路径，前者是否包含后者？若不然，前者与最小生成树有何区别？-CSDN Forum- the best algorithm. Chm file there is a wide range of algorithms, such as: the shortest path there are two different formulations: one from a vertex to other vertex of the shortest path, and second, each of the vertices of the shortest path The former contains the latter? If not, the former with the minimum spanning tree What
- 2022-05-25 11:18:44下载
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JAVADOC documents 1.4.2. There you can quickly find you do not understand the cl...
JAVADOC文档1.4.2。可以上你快速地找到你不懂的类或方法，而且非常的详尽。-JAVADOC documents 1.4.2. There you can quickly find you do not understand the class or method, but also very detailed.
- 2022-06-28 06:55:38下载
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on embedded programming tcl syntax information, personal feel that the well
关于嵌入式编程的tcl语法的资料，个人觉得得不错的-on embedded programming tcl syntax information, personal feel that the well-
- 2022-07-17 03:52:36下载
- 积分：1
