Gnu/Linux lovers have something powerful from Dell -- Inspiron 560s Slim. This desktop computer offers all the muscles that a GNU/Linux user needs. In Dell's words, "Everything you want and nothing you don’t. The Inspiron 560s Slim desktop gives you the power to personalise everything down to the chassis colour."

It comes with Dell's known 'customization' feature so you can pick the parts you need and build your own Gnu/Linux running machine. Dell Inspiron 560s Slim comes with option of Ubuntu Linux  9.04.

Other customizable features include:
Up to 8GB2 dual channel DDR3 memory. Four user-accessible DIMM connectors, installed in pairs for dual channel performance
 
DDR3 is a memory architecture that enables systems to improve performance and reduce power consumption. The amount of RAM you have determines how many programs can be executed at one time and how much data can be readily available to a program. It also determines how quickly your applications perform and how many applications you can easily toggle between at one time.
 
Simply put, the more RAM you have, the more programs you can run smoothly and simultaneously.

Hard Drive
SATA- Hard Drive Options: up to 1TB capacity

Optical Disc Options   
DVD +/- RW, and BD & DVD/CD-RW Combo options available.

Graphics & Video   
Integrated Intel Graphics Media Accelerator X4500 Graphics up to ATI RadeonTM  HD 4350 graphics options available
 
Whether you’re gaming, watching DVDs or editing video on your Dell InspironTM  desktop, the quality of the graphics you experience is only as good as your video card. Along with the display, the video card affects the number of colours available, contrast, resolution and overall performance.