EDWinXP (Electronic Design for Windows) is a CAD/CAE software package. A design engineer can use the computerized tools provided in EDWinXP to create an electronic circuit, design the PCB and fabricate PCB. Complete design information is stored in the integrated project database, simultaneously accessible by Schematic Diagram Editor, PCB Layout Editor, Fabrication Output Manager and Simulators. Front and back annotation of all design changes is fully automatic. EDWinXP comes with extensive part library, which may be updated, customized and enhanced with the help of Library Editor. It also has SPICE simulator - EDSpice and Microcontroller (8051, AVR, PIC and Motorola) and VHDL simulators.