Which of the following phrases best describes a system that inputs data, performs one or more calculations, and produces output data?
A) manual calculator
B) digital computer
C) data-processing system
D) difference engine
E) cash register

Question

Quizplus · Accepted Answer

A data-processing system is designed to input data, perform one or more calculations, and produce output data. The remaining options (A, B, D, E) do not fully meet these criteria. A manual calculator requires manual input of data and calculations, while a digital computer and difference engine are types of machines that can perform a wide range of functions beyond basic input and calculation. A cash register is primarily used for processing monetary transactions and does not necessarily involve complex data processing.

Which of the Following Phrases Best Describes a System That