Information Technology vs Information Systems

Answer the following questions in a paper using APA format:

1. In your own words, define the terms "information technology" (IT) and “information systems” (IS) and explain their components and infrastructure. Why is it important for a manager to be involved in IT and what are the critical responsibilities for the manager?
2. Case Study (discuss the case and answer questions at end of case): Walmart Reworking Its Supply Chain Management System  p. 25 of text.

Your paper should reflect scholarly writing and current APA standards. Please include citations to support your ideas.