can i use engineering programs such as atocad .... in macbook poro 13

Yes. If they are Windows-only apps you have to Run Windows on the Mac by either:

- Apple's Bootcamp

http://www.apple.com/support/bootcamp/

- Or run Windows as a virtual machine with a Mac app like Parallels, VirtualBox and others.

The requirements are listed below. If you are going to do serious AutoCad work, a much larger monitor would be a great benefit.

http://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/ sfdcarticles/System-requirements-for-AutoCAD-for-Mac.html