Hệ điều hành là gì? Tại sao lại gọi là hệ điều hành? Cụm từ "điều hành" thể hiện cho vai trò nào của nó. Người sử dụng có thể thao tác với hệ điều hành theo những cách nào?

Which is a benefit of peer-to-peer networking? easy to add or remove devices main server has a fast processor more reliable than a client/server network same software versions on all computers

What best describes a career pathway in a lodging career? a worker starts out as an amusement attendant, then becomes a recreation worker, and then becomes a gaming worker within five years. a worker starts out as a bell hop, then becomes a night clerk, and then becomes a hotel manager within five years. a worker starting out as a tour guide, then becomes a travel clerk, and then becomes a travel agent within five years. a worker starts out as a server, then becomes a food preparer, and then becomes a head chef within five years.

The "instance" relationship shows that something is an object of a