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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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PCB a simple tutorial, simple PCB introduced the function and use.
一个简单的ＰＣＢ教程，简单明了的介绍了ＰＣＢ的功能和使用方法．-PCB a simple tutorial, simple PCB introduced the function and use.
- 2022-03-21 18:00:51下载
- 积分：1
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Verilog的学习资料，可编程器件fpga的开发语言，有重点介绍Verilog的关键语法...
Verilog的学习资料，可编程器件fpga的开发语言，有重点介绍Verilog的关键语法-Verilog learning materials, they simply PLD development language, and to highlight the key Verilog syntax
- 2022-03-17 21:08:51下载
- 积分：1
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Apache Cookbook
Apache Cookbook
- 2022-12-19 18:20:03下载
- 积分：1
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最新2007 Windows Mobile平台应用程序开发。
最新2007 Windows Mobile平台应用程序开发。-The latest 2007 Windows Mobile application development platform.
- 2023-09-06 11:25:07下载
- 积分：1
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Registry user manual on the windows system registry Note
注册表使用手册关于windows系统注册表的说明-Registry user manual on the windows system registry Note
- 2022-03-25 00:20:10下载
- 积分：1
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maxplus good learning books. Details on the maxplus operating processes and step...
maxplus很好的学习书籍.详细介绍了maxplus操作流程及步骤,对学习maxplus很有帮助-maxplus good learning books. Details on the maxplus operating processes and steps, helpful to learn maxplus
- 2022-04-08 15:13:42下载
- 积分：1
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More Effective C++(WQ版)
More Effective C++(WQ版)-More Effective C (WQ version)
- 2022-05-15 02:22:57下载
- 积分：1
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一本非常经典的C++书籍，学习c++的人应该都看看此书
一本非常经典的C++书籍，学习c++的人应该都看看此书-a very classic C books, learning c people should have a look at this book
- 2022-04-02 00:32:43下载
- 积分：1
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ISO_base_media_file_format
14496－12 3gpp协议关于文件的存储部分
找了很久都没找到，还是一个朋友给的...
ISO_base_media_file_format
14496－12 3gpp协议关于文件的存储部分
找了很久都没找到，还是一个朋友给的-ISO_base_media_file_format 14496-12 3g pp agreement on the storage of documents for a long time failed to find, or a friend to the
- 2022-04-18 23:10:17下载
- 积分：1
