I'am new to the forum and electronics,how do I get the spice program used in the textbook?

 

I'm assuming you are referring to our E-book.

The version used in the E-book examples is Berkeley SPICE 2g6:
http://www.eecs.berkeley.edu/IPRO/Software/Description/spice2g6.html

Home page:
http://bwrc.eecs.berkeley.edu/Classes/IcBook/SPICE/

Where to download various versions of SPICE, both free and paid versions:
http://bwrc.eecs.berkeley.edu/Classes/IcBook/tools.html

Berkeley SPICE 2g6 probably would not be compatible with the NTFS file system. Try using the latest version instead.

 

Many on this forum use LTspice which is fairly easy to use and is free from Linear Technology.

 

I also use LTSpice, and like it a lot.

However, LTSpice doesn't seem to like having multiple plot statements in the deck; so many of the examples won't simulate in LTSpice as they were written.