Unit 1 About Computer Text 1 Can You recognize Them? Modern computers are electronic and digital devices. Figure 1-1 shows the basic organization of a personal computer, Figure 1-2 shows a notebook computer Figure 1-3- Figure 1-8 show some of the internal devices of a computer. They usually cant n, because they are in a box. Lets take a look at them Figure 1-3 hard disk Figure 1-4 CPU 国 Figure 1-5 motherboard
Unit 1 About Computer Text 1 Can You Recognize Them? Modern computers are electronic and digital devices. Figure 1-1 shows the basic organization of a personal computer, Figure 1-2 shows a notebook computer. Figure 1-1 personal computer Figure 1-2 notebook computer Figure 1-3 ~ Figure 1-8 show some of the internal devices of a computer. They usually can’t be seen, because they are in a box. Let’s take a look at them. Figure 1-3 hard disk Figure 1-4 CPU Figure 1-5 motherboard
Figure 1-6 main memory Figure 1-7 video card Figure 1-8 audio card Figure 1-9- Figure 1-10 show two important input devices. They are mouse and keyboard Figure 1-9 mouse Figure 1-10 keyboard Figure 1-11 and Figure 1-12 show two output devices. Other output devices will be ntroduced later Figure 1-11 printer Figure 1-13 shows the power supply. Figure 1-14 shows a DVD-player, it is one of the multimedia devices 6xDvD→ROM Figure 1-13 power supply Figure 1-14 DVD-player These are simple introductions of the computer system and the components of a computer More detailed introductions will be included in other units of this book
Figure 1-6 main memory Figure 1-7 video card Figure 1-8 audio card Figure 1-9 ~ Figure 1-10 show two important input devices. They are mouse and keyboard. Figure 1-9 mouse Figure 1-10 keyboard Figure 1-11 and Figure 1-12 show two output devices. Other output devices will be introduced later. Figure 1-11 printer Figure 1-12 stereo device Figure 1-13 shows the power supply. Figure 1-14 shows a DVD-player, it is one of the multimedia devices. Figure 1-13 power supply Figure 1-14 DVD-player These are simple introductions of the computer system and the components of a computer. More detailed introductions will be included in other units of this book
参考译文 现代计算机都是电子和数字设备。如图1-1所示是个人计算机的基本组成,如图1-2所 示是笔记本电脑的图片。 如图1-3~图1-8所示是计算机的一些内部设备。我们一般见不到它们,因为它们通常 都在一个箱子里。让我们去看一看它们。 如图1-9~图1-10所示是两个重要的输入设备。它们是鼠标和键盘 如图1-11~图1-12所示是两种输出设备。其他的输出设备将在以后介绍。 如图1-13所示是电源的图片。如图1-14所示是一个DVD播放器,它是多媒体设备之 Text 2 Communicate with Computer When using computer, you must know how to communicate with it. In some special situations, the computer will leave some useful error messages or prompts to help you continue with your work. The following are some of the most common messages Abort Retry Please read the following license agreement It is recommended you exit all the other applications before continuing with this nstallation Press ok to continue installation of this software Restart your computer and finish setup Are you sure you want to continue [Y/NJ? gh If you have understood them, it is easy for you to communicate with the computer. Many mistakes can be avoided. Certainly, if you want to know more about them, you have to pay more time learning and practicing 参考译文 当使用计算机的时候,你必须知道与它“交流”。在一些特殊情况下,计算机会发出 些有用的出错信息或提示来帮助继续你的工作。下面是一些最常见的信息: ·错误的文件名或命令。 ·中止,重试或取消? ·请认真阅读下列授权协议书。 建议安装前先关闭其他所有的应用程序。 ·请单击【OK】按钮继续安装
参考译文 现代计算机都是电子和数字设备。如图 1-1 所示是个人计算机的基本组成，如图 1-2 所 示是笔记本电脑的图片。 如图 1-3～图 1-8 所示是计算机的一些内部设备。我们一般见不到它们，因为它们通常 都在一个箱子里。让我们去看一看它们。 如图 1-9～图 1-10 所示是两个重要的输入设备。它们是鼠标和键盘。 如图 1-11～图 1-12 所示是两种输出设备。其他的输出设备将在以后介绍。 如图 1-13 所示是电源的图片。如图 1-14 所示是一个 DVD 播放器，它是多媒体设备之 一。 Text 2 Communicate with Computer When using computer, you must know how to communicate with it. In some special situations, the computer will leave some useful error messages or prompts to help you continue with your work. The following are some of the most common messages: • Bad file name or command. • Abort, Retry, Ignore? • Please read the following license agreement. • It is recommended you exit all the other applications before continuing with this installation. • Press OK to continue installation of this software. • Press F1 for Help. • Restart your computer and finish setup. • Write protected disk in drive. • Are you sure you want to continue [Y/N]? • Not enough memory. If you have understood them, it is easy for you to communicate with the computer. Many mistakes can be avoided. Certainly, if you want to know more about them, you have to pay more time learning and practicing. 参考译文 当使用计算机的时候，你必须知道与它“交流”。在一些特殊情况下，计算机会发出一 些有用的出错信息或提示来帮助继续你的工作。下面是一些最常见的信息： • 错误的文件名或命令。 • 中止，重试或取消？ • 请认真阅读下列授权协议书。 • 建议安装前先关闭其他所有的应用程序。 • 请单击【OK】按钮继续安装
按1键请求帮助 ·重启你的计算机,完成安装 磁盘写保护。 确认继续吗?(是按回/不是按囚键) 内存不足 如果你已经理解它们,那你能与计算机很好地交流而且可以避免很多错误。当然,假如 你想了解有关它们的更多知识,就必须花更多时间学习和实践 Text 3 Simple Introduction of Installation If you want to buy a computer or you have already had a computer, you must know omething about installation. Installation includes hardware installation and software installation Both of them are not complex at all, what you must do is to read the instructions or prompts and follow them For example, here is a user's manual of a display screen. There are many instructions and prompts in it. After having done what you are told to do, you will finish the installation of a monitor (1) Read Me before installation Set the front of your monitor to face the east if possible When cleaning the outside of your monitor and picture tube, use a damp cloth or a cloth with a recommended detergent, please (2) Steps Connect the power cord for your monitor to the power port on the back of the monitor Plug the power cord for the monitor into a nearby outlet Connect the end of the signal cable to your computers video port If you are using a Macintosh computer, connect the cable to a Macintosh adapter nd set the pins on your adapter Turn on your computer and monitor If your monitor can display image, installation is completed If the product you have purchased does not include a CD-based manual, please visit the following URL to download users guide and driver installation file (4) Refreshing rate setting The higher the refreshing rate is, the better the resolution becomes. However, this can limited by the capacity of system Recommended rate: 85Hz(at least 75 Hz) inappropriate refreshing rate may fatigue your eyes (5) Resolution setting The best resolution may differ from the size of monitor
• 按 F1 键请求帮助。 • 重启你的计算机，完成安装。 • 磁盘写保护。 • 确认继续吗？（是按 Y／不是按 N 键） • 内存不足。 如果你已经理解它们，那你能与计算机很好地交流而且可以避免很多错误。当然，假如 你想了解有关它们的更多知识，就必须花更多时间学习和实践。 Text 3 Simple Introduction of Installation If you want to buy a computer or you have already had a computer, you must know something about installation. Installation includes hardware installation and software installation. Both of them are not complex at all, what you must do is to read the instructions or prompts and follow them. For example, here is a user’s manual of a display screen. There are many instructions and prompts in it. After having done what you are told to do, you will finish the installation of a monitor. (1) Read Me before installation • Set the front of your monitor to face the east if possible. • When cleaning the outside of your monitor and picture tube, use a damp cloth or a cloth with a recommended detergent, please. (2) Steps • Connect the power cord for your monitor to the power port on the back of the monitor. • Plug the power cord for the monitor into a nearby outlet. • Connect the end of the signal cable to your computer’s video port. • If you are using a Macintosh computer, connect the cable to a Macintosh adapter, and set the pins on your adapter. • Turn on your computer and monitor. If your monitor can display image, installation is completed. (3) Prompts If the product you have purchased does not include a CD-based manual, please visit the following URL to download user’s guide and driver installation file. (4) Refreshing rate setting The higher the refreshing rate is, the better the resolution becomes. However, this can be limited by the capacity of system. • Recommended rate: 85Hz (at least 75 Hz). • An inappropriate refreshing rate may fatigue your eyes. (5) Resolution setting The best resolution may differ from the size of monitor
14 and 15 inch monitor 800*600 17 inch monitor: 1024*768 19and2 I inch monitor:1024*768,1280*1,024 Other hardware installation is similar to this. In fact, software installation is usually easier. Of course, you should do more practice if you want to master the knowledge of installation better 参考译文 如果你想购买一台计算机或者已经拥有一台计算机,你必须知道有关安装的一些知识 安装包括硬件安装和软件安装,它们其实并不复杂,你需要做的就是阅读有关说明和提示, 并根据这些信息进行操作 举例来说,这里有一个显示器的用户手册,其中有一些操作说明和提示。按照这些指示 进行操作后,你就可以顺利完成显示器的安装工作 (1)安装前阅读自我说明( ReadMe)材料 如果可能,请把您的显示器的面板朝东。 要清洁显示器的外表和显像管,请用湿布或蘸有推荐洗涤剂的布。 (2)步骤 ·把你的显示器的电源线连接到显示器背面的电源端口。 ·把显示器的电源线插在附近的一个插座上。 ·把信号电缆连接到计算机的视频口上。 如果你使用的是 Macintosh计算机,则把电缆连接 Macintosh适配器 ·打开你的计算机和显示器。 如果显示器可以显示出图像,那么安装就完成了。 (3)提示 如果你购买的产品没有CD光盘形式的使用手册,请访问以下网址下载用户手册和驱动 程序安装文件。 (4)刷新率设置 刷新率越高,清晰度越高。但是,它有可能受限于系统的容量, ·建议刷新率:85Hz(最小7Hz ·刷新率不合适,会使眼睛疲劳 (5)分辨率设置 最佳分辨率可以因显示器尺寸而有所不同。 ·14英寸和15英寸的显示器:800×600 17英寸的显示器:1024×768 ·19英寸和21英寸的显示器:1024×768,1280×1024
• 14 and 15 inch monitor: 800*600 • 17 inch monitor: 1024*768 • 19 and 21 inch monitor: 1024*768, 1280*1,024 Other hardware installation is similar to this. In fact, software installation is usually easier. Of course, you should do more practice if you want to master the knowledge of installation better. 参考译文 如果你想购买一台计算机或者已经拥有一台计算机，你必须知道有关安装的一些知识。 安装包括硬件安装和软件安装，它们其实并不复杂，你需要做的就是阅读有关说明和提示， 并根据这些信息进行操作。 举例来说，这里有一个显示器的用户手册，其中有一些操作说明和提示。按照这些指示 进行操作后，你就可以顺利完成显示器的安装工作。 (1) 安装前阅读自我说明（ReadMe）材料 如果可能，请把您的显示器的面板朝东。 要清洁显示器的外表和显像管，请用湿布或蘸有推荐洗涤剂的布。 (2) 步骤 • 把你的显示器的电源线连接到显示器背面的电源端口。 • 把显示器的电源线插在附近的一个插座上。 • 把信号电缆连接到计算机的视频口上。 • 如果你使用的是 Macintosh 计算机，则把电缆连接 Macintosh 适配器。 • 打开你的计算机和显示器。 如果显示器可以显示出图像，那么安装就完成了。 (3) 提示 如果你购买的产品没有 CD 光盘形式的使用手册，请访问以下网址下载用户手册和驱动 程序安装文件。 (4) 刷新率设置 刷新率越高，清晰度越高。但是，它有可能受限于系统的容量。 • 建议刷新率：85Hz（最小 75Hz）。 • 刷新率不合适，会使眼睛疲劳。 (5) 分辨率设置 最佳分辨率可以因显示器尺寸而有所不同。 • 14 英寸和 15 英寸的显示器：800×600 • 17 英寸的显示器：1024×768 • 19 英寸和 21 英寸的显示器：1024×768，1280×1024
其他硬件的安装与之类似。一般来说,软件安装更为简单。当然,如果你希望更为熟练 地掌握安装的基本技巧,必须进行更多的实践 Text 4 Simple Introduction of Processor The main function of a processor is to interpret and carry out instructions. Every processor has a set of operations such as ADD, StORE and LOAD. These instruction sets are sometimes called machine instructions. They are different from those in high-level language, such as Visual Basic(vB) An instruction is usually made up of two sections. They are ation ifies the function to be performed while the operand represents the data to be operated on. For example, when we are doing a calculation: 1+1=2, the two numbers of"I"is operand, and the figure of+""is operation Numbers have their own addresses when they are stored in the computer. These addresses indicate where the numbers are Here, the processor gets the instructions and operands from memory unit and performs each operation. When on instruction is finished, the processor will continue to perform the rest operations How can we identify what kind of processor is better? There are many indexes to identify a ood calculating speed stability safetv ratio between function and price other factors To most of conventional users, the vital factor is its calculating speed. A timer called a clock releases timed electrical signals. These signals provide a regular pulse for the processors work The term to measure the speed of the processor is called a Megahertz(MHz), which means million cycles per second. For instance, in a 1200-MHz processor, the clock ticks 1200 million times clock ticks one time in every one second. As for stability and safety, they indicate that your processor can work stably and correctl The better the processor's function is and the lower its price is, then the better the ratio between function and price is. It is up to you when you choose one kind of processor. 参考译文 处理器简介 处理器的主要作用就是解释和执行指令。每个处理器都有诸如ADD、 STORE和LOAD 之类的操作码。这些指令系统有时也被称为机器指令系统。它们与VB等高级语言的指令有 很大的区别 个指令往往由两部分组成,它们是 操作码 ·操作数
其他硬件的安装与之类似。一般来说，软件安装更为简单。当然，如果你希望更为熟练 地掌握安装的基本技巧，必须进行更多的实践。 Text 4 Simple Introduction of Processor The main function of a processor is to interpret and carry out instructions. Every processor has a set of operations such as ADD, STORE and LOAD. These instruction sets are sometimes called machine instructions. They are different from those in high-level language, such as Visual Basic (VB). An instruction is usually made up of two sections. They are： • operation • operand The operation specifies the function to be performed while the operand represents the data to be operated on. For example, when we are doing a calculation: 1+1=2, the two numbers of “1” is operand, and the figure of “+” is operation. Numbers have their own addresses when they are stored in the computer. These addresses indicate where the numbers are. Here, the processor gets the instructions and operands from memory unit and performs each operation. When one instruction is finished, the processor will continue to perform the rest operations. How can we identify what kind of processor is better? There are many indexes to identify a good processor. They are as follows: • calculating speed • stability • safety • ratio between function and price • other factors To most of conventional users, the vital factor is its calculating speed. A timer called a clock releases timed electrical signals. These signals provide a regular pulse for the processor’s work. The term to measure the speed of the processor is called a Megahertz (MHz), which means million cycles per second. For instance, in a 1200-MHz processor, the clock ticks 1200 million times when an ordinary clock ticks one time in every one second. As for stability and safety, they indicate that your processor can work stably and correctly. The better the processor’s function is and the lower its price is, then the better the ratio between function and price is. It is up to you when you choose one kind of processor. 参考译文 处理器简介 处理器的主要作用就是解释和执行指令。每个处理器都有诸如 ADD、STORE 和 LOAD 之类的操作码。这些指令系统有时也被称为机器指令系统。它们与 VB 等高级语言的指令有 很大的区别。 一个指令往往由两部分组成，它们是： • 操作码 • 操作数
操作码指明要执行的操作,而操作数则代表要操作的数据。例如,当我们要进行1+1-=2 计算时,两个“1”是操作数,而“+”则是操作码。当数据被存储到计算机中时,它们分 别有自己的地址,这些地址表示这些数据被存放在哪里。这里,处理器从存储单元取出指令 和操作数,并执行每个操作。当一个指令完成之后,处理器又会接着去执行其他的指令。 那我们如何来识别什么样的处理器更好呢?有很多指标可以用来衡量一个好的处理器。 它们如下 ·运算速度 ·稳定性 安全性 性价比 其他因素 对于大多数的常规用户来说,运算速度是最重要的一个因素。一个被称为时钟的计时器 定时地发出电信号,这些信号为计算机工作提供有规律的脉冲。测量处理器计算速度的单位 是兆赫兹(MHz),一兆赫兹指每秒一百万个周期。例如,在一个1200兆的处理器中,普 通时钟每滴答一次,处理器内的时钟就要滴答1200兆次。至于稳定性和安全性,它们表明 你的处理器能稳定而正确地工作 处理器的功能越好、价格越低,那它的性价比就越高。选择什么样的处理器还得由你自 己决定
操作码指明要执行的操作，而操作数则代表要操作的数据。例如，当我们要进行 1+1=2 计算时，两个“1”是操作数，而“+”则是操作码。当数据被存储到计算机中时，它们分 别有自己的地址，这些地址表示这些数据被存放在哪里。这里，处理器从存储单元取出指令 和操作数，并执行每个操作。当一个指令完成之后，处理器又会接着去执行其他的指令。 那我们如何来识别什么样的处理器更好呢？有很多指标可以用来衡量一个好的处理器。 它们如下： • 运算速度 • 稳定性 • 安全性 • 性价比 • 其他因素 对于大多数的常规用户来说，运算速度是最重要的一个因素。一个被称为时钟的计时器 定时地发出电信号，这些信号为计算机工作提供有规律的脉冲。测量处理器计算速度的单位 是兆赫兹（MHz），一兆赫兹指每秒一百万个周期。例如，在一个 1 200 兆的处理器中，普 通时钟每滴答一次，处理器内的时钟就要滴答 1 200 兆次。至于稳定性和安全性，它们表明 你的处理器能稳定而正确地工作。 处理器的功能越好、价格越低，那它的性价比就越高。选择什么样的处理器还得由你自 己决定