I need explain what is •Stock, personal, customer, finance information in organizations?

Answer 1

Sounds like you need some definitions for a project.

Start with investopedia.com. You'll find a great deal of basic information to start with at your fingertips.

For companies, go to finance.yahoo.com where you can find a lot of basic info on companies.

Hope that helps!

Answer 2

Perhaps to re-phrase your question(s), and narrow the scope if you want any hope of a decent answer.