Mac OS X version 10.6.3 Snow Leopard

Mac OS X Snow Leopard is built on a rock-solid, time-tested UNIX foundation.
Improvements include a more responsive Finder, new look and features for Exposé.
New core technologies unleash the power of today's advanced hardware technology and prepare Mac OS X for future innovation:
With virtually no effort on your part, Mac OS X protects itself--and you--from viruses, malicious applications, and other threats
Mac OS X Snow Leopard includes built-in support for the latest version of Microsoft Exchange Server.
64-bit computing, multicore-optimization, OpenCL, QuickTime X, and more
It provides unparalleled stability as well as industry-leading support for Internet standards
Stacks, quicker Time Machine backup, faster common tasks and installation, a smaller install footprint, and plenty more
You can use Mail, iCal, and Address Book at home and at work.

Windows 7 Home Premium SP1 64bit (Full) System Builder DVD 1 Pack

Make the things you do every day easier with improved desktop navigation.
Start programs faster and more easily, and quickly find the documents you use most often.
Make your web experience faster, easier and safer than ever with Internet Explorer 8.
Watch, pause, rewind, and record TV.
Easily create a home network and connect your PCs to a printer with HomeGroup.

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