TARGET 3001!is a CAD/CAE-software for PCB design with integration of the schematic, simulation and layout data into one user interface .
TARGET 3001! itself consists of schematic, mixed mode simulation, contour autorouter, autoplacer, PCB layout, 3D view with a STEP export, basic EMC check and a front panel layout. It provides manufacturing data for production processes of all industry standards.
If you want to use these pcb design software , requiments are :
Operating system: Windows ME/NT4/2000/XP/Vista
Processor: AMD or Pentium III , 500 mHz recommended
256 MB RAM
Graphics: 1024x768 pixels, 256 colors, Open GL support (for 3D view)
Graphics memory: 512 MB
A small review about these circuit design software you can read on these circuits design website .