（4）Storage Devices

（4）Storage Devices
Storage is a computer section used primarily for storing information such as instructions,programs and data.
There are two types in storage devices,one is the memory (sometimes called as primary storage),another is the secondary storage. Primary storage is located within the system unit that house the CPU and other componets.Secondary storages include the storage media and drives, We will decribe them in section 1.4 of this textbook.
An arbitrary desktop computer(not necessarily a PC)is shown in Figure 1-4.It has a large main memory to hold the operating system,applications and data, and an interface to mass storage devices(disks and DVD/CD-ROMs).It has a variety of I/O devices for user input(keyboard,mouse,and audio),user output(display interface and audio),and connectivity(networking and peripherals).The fast processor requires a system manager to monitor its core temperature and supply voltages,and to generate a system reset.

（4）Storage Devices
（4）存储设备
Storage is a computer section used primarily for storing information such as instructions,programs and data.
存储是计算机部分，主要用于存储指令、程序和数据等信息。
There are two types in storage devices,one is the memory (sometimes called as primary storage),another is the secondary storage.
存储设备有两种类型，一种是内存（有时称为主存储器），另一种是二次存储。
Primary storage is located within the system unit that house the CPU and other componets.
主存储器位于包含CPU和其他组件的系统单元内。
Secondary storages include the storage media and drives, We will decribe them in section 1.
二级存储包括存储介质和驱动器，我们将在第1节中描述它们。
4 of this textbook.
这本教科书的4。
An arbitrary desktop computer(not necessarily a PC)is shown in Figure 1-4.
任意桌面计算机(不一定是PC)如图1-4所示。
It has a large main memory to hold the operating system,applications and data, and an interface to mass storage devices(disks and DVD/CD-ROMs).
它有一个大的主存储器来保存操作系统、应用程序和数据，以及与大规模存储设备(磁盘和DVD/CD-ROM)的接口)。
It has a variety of I/O devices for user input(keyboard,mouse,and audio),user output(display interface and audio),and connectivity(networking and peripherals).
它有多种I/O设备，用于用户输入（键盘、鼠标和音频)、用户输出(显示接口和音频)和连接(网络和外围设备）。
The fast processor requires a system manager to monitor its core temperature and supply voltages,and to generate a system reset.
快速处理器需要一个系统管理器来监视其核心温度和电源电压，并产生系统复位。

（4） 存储设备
存储设备是计算机的一部分，主要是用于存储诸如指令、程序和数据信息的。
存储器有两种类型，一是内存储器（优势称作主存储器），另一种是二级存储器。主存储器置于系统单元内，那里还有CPU和其他部件。二级存储器包括存储介质和驱动器，我们将在本书1.4节中叙述。
任意一台台式计算机（不一定必须是PC）的框图如图1-4所示。它有一个很大的主存储器，用于保存操作系统、应用程序和数据，以及一个用于连接海量存储设备（磁盘、数字视盘/光盘只读存储器）的接口。它有各式各样的输入输出设备，用户用来实现输入（键盘、鼠标和音频设备）、输出（显示接口和音响设备）以及连接功能（联网和外围设备）。快速处理器需要一个系统管理程序去监视它的内核温度和供电电压，并可进行系统复位。