This page compares the features of LibreOffice 4.1 and Microsoft Office 2013. It separates major and minor feature differences and also includes LibreOffice extensions. The comparison highlights differences and therefore does not display any features which are present in both office suites.

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Linux From Scratch (LFS) is a project that provides you with step-by-step instructions for building your own customized Linux system entirely from source.

In this article, I show how overflow is computed in the 6502 microprocessor at the transistor and silicon level. I've discussed the mathematics of the 6502 overflow flag earlier and thought it would be interesting to look at the actual chip-level implementation. Even though the overflow flag is a slightly obscure feature, its circuit is simple enough that it can be explained at the silicon level.