Punched Cards

栏目: IT技术 · 发布时间: 6年前

内容简介:01People used calculators to manipulate numbers. But how do you make machines that also manipulate words or ideas?Punched cards, a mainstay of early office automation and computing, helped launch the transition from doing math to processing data. Patterns

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Punched Cards

Punched Cards

Pomology Horticulture Punched Card

Punched cards were widely used for a range of statistical applications. This card is from a set produced at the University of Illinois in the 1920s. They were created to analyze data for fruit tree research on the university farms.

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From Math to Data

People used calculators to manipulate numbers. But how do you make machines that also manipulate words or ideas?

Punched cards, a mainstay of early office automation and computing, helped launch the transition from doing math to processing data. Patterns of holes punched in cards can represent any kind of information. Punched cards can preserve data too: just file them away!


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Release It!

Release It!

Michael T. Nygard / Pragmatic Bookshelf / 2007-03-30 / USD 34.95

“Feature complete” is not the same as “production ready.” Whether it’s in Java, .NET, or Ruby on Rails, getting your application ready to ship is only half the battle. Did you design your system to......一起来看看 《Release It!》 这本书的介绍吧!

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正则表达式在线测试
正则表达式在线测试

正则表达式在线测试