Расположите пропущенные предложения в таком порядке, чтобы получился связный текст
A computer system is a collection of components that work together to process data. The purpose of a computer system is to make it as easy as possible for you to use a computer to solve problems. 1___________________________________. The hardware elements are the mechanical devices in the system, the machinery and the electronics that perform physical functions. 2___________________________________. Documentation includes the manuals and listings that tell you how to use the hardware and software.
3__________________________________. Usually, a computer system requires three basic hardware items: the computer, which performs all data processing; a terminal device, used like a typewriter for two-way communication between the user and the system; and a storage medium for storing programs and data. 4__________________________________.
A functioning computer system combines hardware elements with software elements.
The software elements are the programs written for the system; these programs perform logical and mathematical operations and provide a means for you to control the system.
Collectively these components provide a complete computer system: system hardware + system software + system documentation = computer system.
These three devices - the computer, the terminal and the storage medium - are the required hardware components of any computer system.