OrCad
PSpice Tutorial for the OrCAD PSpice Release 9.1 Student Version.pdf
The Simulation Program with Integrated Circuit Emphasis (SPICE) was first developed in the early 1970, and was written in the FORTRAN programming Language, intended to support the early data entry methods of this period.
PSpice Optimizer User’s Guide.pdf
The PSpice Optimizer is fully integrated with other Orcad programs. This means you can design your circuit with Orcad Capture, simulate and analyze results with PSpice and optimize performance within the same environment.
OrCAD PSpice A/D Reference Manual.pdf
OrCAD’s products are a suite of applications built around an engineer’s design flow—not just a collection of independently developed point tools. PSpice and PSpice A/D are just one element in OrCAD’s total solution design flow.

