Why and how has human resources changed due to the technology revolution?

Week 1: Technology in Human Resources

Why and how has human resources changed due to the technology revolution?
If you were asked to define HRIS, what would be your response?
To help develop your response, you will want to search the Internet or our library for some of the technologies that have changed the technology in HR over the last 50 years, what the technology is, why it was created, and how it helped improve HR functions? Cite your sources.