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Sean Wilkins

Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, doesn't approve of blurring collision domains and broadcast domains. Though these models are often taught together, modern technology has outpaced some of the ideas, and networking specialists who are new to the field need to distinguish between current terminology and outdated concepts.

In this chapter from Cocoa Programming for OS X: The Big Nerd Ranch Guide, 5th Edition, you will build a simple 2D physics simulation. You will create your own structure and a few classes, and you will learn about the differences between them.

Charlie Hunt, author of Java Performance LiveLessons, offers advice on how to be successful at meeting a Java application's performance expectations.

Hal Fulton

Hal Fulton, author of The Ruby Way, points out some of the extensive changes Ruby has experienced in less than a decade. By paying attention to why and how programming languages evolve, we can learn from experience and past mistakes, deliberately changing the language (and especially our usage of it) for a better future.

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Blogs

John  Traenkenschuh

Too often, Mac OS X users are bound and gagged by the Graphical User Interface Apple provides.  Not So Traenk...


Brad Yale

I spend a lot of time online looking for answers. I spend a lot of time online crowd sourcing various communities for those answers. I spend a lot of time online sifting through the best online community based forums to find how-to tutorials and quick fixes. In this spirit, I present the best question/answer sites for developers, programmers, mobile devs and web hosting professionals.  

John  Traenkenschuh

Traenk mulls over his ethical hacking job and remote access technologies. Does user convenience make unseen threats more real?

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