1数据是未经组织的事实的集合,数据可以包括单词,数字,图像和声音.

2计算机由许多硬件部件构成,这些硬件与软件一起工作,以便执行计算,组织数据及与其他计算机通信的任务,

3硬件部件包括输入设备,输出设备,系统单元 ,存储设备和通信设备.

4输入设备让用户向计算机存储器输入数据和命令

5外存储器与内存储器不同,外存储器能永久保存数据而内存储器仅临时保存.

6硬盘能比软盘提供更大的存储容量.

7四种常用的外存设备分别是:软盘驱动器,硬盘驱动器,CD-ROM驱动器和DVD-ROM驱动器.

8中央处理器(CPU)有时也称处理器,用来解释并执行基本的计算机操作指令.

9在系统单元中，计算机的存储器存储数据,指令和信息

10输入，处理，输出，和存储的这种循环成之为信息处理循环。

1 Data is a collection of un-organized facts, which can include words, numbers, images, and sounds.

2 A computer consists of a variety of hardware components that work together with software to perform calculations, organize data, and communicate with other computer.

3 These hardware components include input devices, output devices, a system unit, storage devices, and communications devices.

4 An input device allows a user to enter data and commands into the memory of a computer.

5 Storage differs from memory ,which can hold these items permanently，whereas memory holds these memory holds items only temporarily。

6 A hard disk provides much greater storage capacity than a floppy disk.

7 Four common storage devices are a floppy disk drive, a hard disk drive, a CD- ROM drive, and a DVD-ROM drive.

8 The central processing unit (CPU), sometimes referred to as the processor, interpretsand carries out the basic instructions that operate a computer.

9 In the system unit, a computer’s memory store

s data, instructions, and information.

10 This cycle of input, process, output, and storage is called the information processing cycle