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Here are some key features of "Adobe Photoshop":

┬╖ Edit and enhance with imaging magic
┬╖ Work more efficiently
┬╖ Work with state-of-the-art photography tools
┬╖ Process images professionally with the Adobe Camera Raw 7
┬╖ Control color and tone
┬╖ Intuitively create movies and video content (also images but only with the Photoshop CS6 Extended package)
┬╖ Create superior designs and artwork
┬╖ Composite images with advanced features
┬╖ Take advantage of a streamlined workflow
┬╖ Save time with user-inspired improvements
┬╖ Extend your reach
┬╖ Create 3D graphics with ease 
┬╖ Control color and tone
┬╖ Perform quantitative analysis 

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Requirements:

┬╖ Intel Pentium 4 or AMD Athlon 64 processor
┬╖ 1GB of RAM
┬╖ 1GB of available hard-disk space for installation; additional free space required during installation (cannot install on removable flash-based storage devices)
┬╖ 1024x768 display (1280x800 recommended) with qualified hardware-accelerated OpenGL graphics card, 16-bit color, and 256MB of VRAM
┬╖ Some GPU-accelerated features require graphics support for Shader Model 3.0 and OpenGL 2.0
┬╖ DVD-ROM drive
┬╖ Broadband Internet connection required for online services