Each day, computers help millions of people do their jobs more effectively. For example, t
But employment benefits certainly aren't restricted to managers. Healthcare researchers and other scientists also use computers to conduct research into complex problem areas that couldn't otherwise be studied. Lawyers use online legal data banks to locate precedent (先前的) cases in order to serve clients better. Salespeople can receive more timely information about products in stock, can promise customers that their sales orders will be handled promptly, and can thus improve their sales performance because of the computer system. And the job duties of some office and factory workers have changed from routine, repetitive operations to more varied and appealing tasks through computer usage. For example, office workers who understand text processing, computing, and data communication usually have vital roles and are given critical office functions to perform.
Which of the following examples shows the controlling function of a computer?
A.Helping managers decide on a future course of action.
B.Helping managers check if planned goals are reached.
C.Helping managers save time in writing a report.
D.Helping managers design a spreadsheet package.