This could be in the form of general company information or specific product information. Most companies are happy to oblige. Do your best to become familiar with the company's position within the marketplace and how they position themselves with their customers. Ironically, most students don't attempt to access any of the above information until after their first on-campus interview. But if you are serious about your job search, do your best to acquire the information before you make contact with the employer or its representatives.
Job search is a two-way street.
Don't just go begging for any job. Doing detailed research on each potential employer will assist you in better understanding which companies you may have an interest in working for. And it will give you the ammunition you need to be successful in eventually landing a job offer from the employer of your choice.