Question

hello everyone ... can some say me some use full software tools to design an printed circuit board
and then some use full links related to electronics

Answer 1

You can use a software by National Instruments called Multisim which also has a utility software called Ultiboard which can be used for PCB design....Why don't you run a search on Multisim version 12.0.1 and you will come up with a host of sites offering the software along with keygen...I had downloaded from 4shared quite a while ago....Hope this helps..

Answer 2

Design of PCBs can be easily done by EAGLE CAD.
http://www.cadsoftusa.com/

Answer 3

NI Multisim can be used for simulating circuits
http://www.ni.com/multisim/

Answer 4

NI Labview is also a great Software....
http://www.ni.com/labview/