不知道老师问啥，询问了学长学姐，感觉学校考的都差不多记录一下
A computer system consists of hardware system and software system. The hardware of the computer is usually divided into three major parts or three primary subsystems: the CPU, the memory subsystem, and the I/O subsystem.
The CPU performs many operations and controls computer. The memory subsystem is used to store program being executed by the CPU, along with the program’s data. The I/O subsystem allows the CPU to interact with input and output devices such as the keyboard and monitor of a personal computer. The components of the computer are connected to the buses
计算机系统由硬件系统和软件系统组成。计算机硬件通常分为三个主要部分或三个主要子系统：CPU、内存子系统和I/O子系统。
CPU执行许多操作并控制计算机。内存子系统用来存储CPU正在执行的程序以及程序的数据。I/O子系统允许CPU与输入和输出设备（如个人计算机的键盘和显示器）交互。计算机的部件与总线相连。.
Describe all the parts of an information system.
An information system typically consists of five parts: people, procedures, software, hardware, and data. Information systems are used by people in order to increase productivity. Procedures are rules or guidelines for people to follow when using software, hardware, and data. Software is a program that contains the step-by-step instructions that tell the computer how to do its work. Hardware consists of the physical equipment that processes the data to create information. Data consists of raw unprocessed facts, including text, numbers, images, and sounds.
描述信息系统的所有部分。
信息系统通常由五部分组成：人员、过程、软件、硬件和数据。人们使用信息系统是为了提高生产力。程序是人们在使用软件、硬件和数据时要遵循的规则或指南。软件是一种包含分步指令的程序，这些指令告诉计算机如何工作。硬件由处理数据以创建信息的物理设备组成。数据由未经处理的原始事实组成，包括文本、数字、图像和声音。
What is an operating system? Give two examples.
Operating systems are software that make the computer function. It is the layer that connects the hardware to the applications software. All programs that run on the computer do so in coordination with the operating system. Mainly, operating systems are programs that coordinate computer resources, provide an interface between the users and the computer, and run applications. Some examples of operating systems are Windows 7 and Mac OS X.
什么是操作系统？举两个例子。
操作系统是使计算机工作的软件。它是连接硬件和应用软件的层。在计算机上运行的所有程序都是与操作系统协同工作的。操作系统主要是协调计算机资源、在用户和计算机之间提供接口并运行应用程序的程序。操作系统的一些例子是Windows 7和Mac OS X。