Final answer:
True, businesses with multiple networked computers or a website require a server to manage network resources, host websites, and ensure reliable service affecting customers and revenues.
Step-by-step explanation:
If a business has a number of computers networked together or maintains a web site, it is indeed true that it will need a server. A server manages network resources and services such as email, print, and file services. For a website, a server hosts the files and runs the software that allows users to access the website over the Internet. Servers can vary in size from small, dedicated machines to large data centers for bigger businesses. The reliability of these servers is critical in a business context, as device reliability can directly impact customers and revenues. Many businesses also use servers for various tasks, including data storage, running business applications, and providing security features like firewalls.