Why does the paragraph say, 'It’s a good thing that Anna is learning to use a computer'?

Anna and her classmates learned about a new way some companies are hiring people. It’s a good thing that Anna is learning to use a computer. Why? For many companies, meeting a computer is like meeting a manager. In one supermarket, people are encouraged and invited to apply for a job. A computer is placed near customer service. The computer gathers information about the person. The computer asks for your name, address, and social security number. It also asks many other questions that gather information. The answers tell the company if the person might do a good job and stay a while.