Briefly discuss the activities of an operating system:
Facilities and layout
Motivating and training employees
Here you are asking for some precise definitions of the business process. The difficulty is often formulating these definitions into everyday language. Although I have given you all the definitions you need, you will see that I changed the order of a couple of them in order to better fit the definitions usually given in the business realm. Also, there are a few that I have combined together, separated, or slightly changed the wording for the same reason. I love how you described this list as the "activities of an operating system"!
Forecasting: A tool used for planning for the future. It assists managers by their relying on assumptions from data and trends. It is important that this information be correct, otherwise an error can be made in forecast.
Capacity planning: figuring out methodically what the requirements are in regards to resources for the business during a certain period of time.
Scheduling: writing down the number of employees needed (and then assigning those same employees) to complete all of the jobs in the business during each, individual business day. Scheduling can also have to do with timing in this process due to production.
Managing inventories (sometimes called Inventory Management): is the process of counting the product not yet purchased in order to achieve the perfect amount of production. The goal is to never cease the production of the product, but change the rate according to the counted inventory.
Quality assurance (often known as Quality Control): is a very general term that involves most everything from keeping the consumer happy to keeping the employee safe. The correct amounts of product have to be produced, the quality of each item must be inspected, the suppliers must be inspected, high standards bust be met, etc. Further, each particular aspect of quality control must have its own set of consequences.
Employee Motivation: is the process by which workers increase excitement about their job in order to retain their commitment to the company. This motivation can come from inside the company or even from the worker himself/herself.
Motivation results from the interaction of both conscious and unconscious factors such as the intensity of desire or need, incentive or reward value of the goal, and expectations of the individual and of his or her peers.
Employee Training: is the process by which workers actually learn to do their jobs. It is a very organized set of activities meant to give both instruction and information. This increases the skills required to do the work producing the product.
Facilities (and Layout of those Facilities): are places (usually in the form of a building or plant) where the product will be produced or managed. A facility's layout is the written plan of exactly where things will be inside that structure in order to achieve maximum production.