计算机专业英语(第二版)全套课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2021/12/26,#,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,2021/12/26,#,计算机专业英语,(,第二版,),Lesson,Smartphone,Tablet and Laptop,1,What do you know about smartphone,tablet and laptop?,Have you ever used a laptop?If so,what do you think of it?,Warm-up Exercises,smartphone,智能手机,tablet,平板电脑,laptop,笔记本电脑,mobile devices,移动设备,handheld,手提型,operating system,操作系统,Install,安装,virtual,虚拟的,highly capacitive touchscreen,高电容式触摸屏,internal memory,内部存储器,Word Preparation,display screens,显示屏幕,dominate,支配,enriched multimedia device,丰富的多媒体设备,Wi-Fi,（,Wireless Fidelity,）无线保真,dual camera,双摄像头,HD,（,high definition,）高清晰度,compromises,妥协,Integrates,结合，整合,touchpad,触摸板,package,套装软件,Word Preparation,Smartphone,Tablet and Laptop are the most popular mobile devices.In this article,we will see the differences between the three.,Smartphone,Though a smartphone is basically a device made for calling and receiving calls,it can be thought of as a handheld mini computer as against simple phones,it makes use of an independent operating system(os)to install and run advanced and complex applications,.Most smartphones have a virtual keyboard that the user can operate easily with the help of a highly capacitive touchscreen.,Text,虽然智能手机基本上是一个用来打电话和接听电话的设备，但相对于普通的手机，它可以被看做一个手提型的迷你计算机，它能使用独立的操作系统来安装和运行高级而又复杂的程序。,Smartphones have fast processors and large internal memory,big display screens(around 3.5”)and OS are very user friendly.,Two OS that have dominated the smartphone market are Apples iOS and Googles Android,.While iOS is used by smartphones made by Apple only,Android is an open source OS used by nearly all the other manufacturers of smartphones.,Text,这两个垄断了智能手机市场的操作系统是苹果的,iOS,和谷歌的,Android,。,Tablet,Tablet PC,as it is called makes available capabilities of an enriched multimedia device allowing the user to experience audio and video files on a bigger screen which is normally around 10 inches,just a little bit smaller than a laptop.As tablets make use of virtual keyboard,they are good for little typing work such as sending emails.,Text,All tablets are Wi-Fi,meaning they can be used to surf the web and they can be used to play games also.,Today,tablets are coming equipped with dual camera both for capturing HD,（,high definition,）,videos and to make video chatting and video calling possible.However,as there are compromises in hardware,the functions such as multimedia tasking and other complex operations are difficult to perform in tablets.,Text,所有的平板电脑都是无线相容认证的，这就意味着它们能够用来上网，也可以用来玩游戏。,Laptop,Of the three mobile devices,laptop is the most powerful when it comes to computing and also for browsing the net.It has the fastest processor and also largest capacity of internal memory.A laptop is basically a PC that can be carried along at all places and integrates all the capabilities of a computer,.Instead of a mouse the user has a touchpad and the speakers are inbuilt to make it a complete package.,In addition,a laptop can be operated on a battery,and without power,it can run for 3-5 hours.With a display of 14”or more,a laptop is capable of performing all the tasks your computer theoretically can.,Text,不用鼠标，用户有一个按指式图形输入板并内置了扬声器来组成一个完整的套装软件。,Tablet,A category of mobile device that provides advanced capabilities beyond a typical mobile phone.Smartphones run complete operating system(OS)software that provides a standardized interface and platform for application developers.,A general-purpose computer contained in a single panel.Its distinguishing characteristic is the use of a touch screen as the input device.Modern tablets are operated by fingers,and a stylus is an option,whereas earlier tablets required a stylus.In 2000,Microsoft introduced its first Windows tablet.,Laptop,A laptop computer or simply laptop(also notebook computer or notebook)is a small mobile personal computer,usually weighing from two to six pounds(one to three kilograms),depending on size,materials and other factors.While the terms laptop and notebook are often used interchangeably.,Key Terms,Smartphone,Questions,Whats the difference between a smartphone and a tablet?,Whats the difference between a tablet and a laptop?,Can Android be used by Apple?,Which do you think is the most popular,smartphone,tablet or laptop?Why?,Exercise,Translate the following sentences into Chinese,Most smartphones have a virtual keyboard that the user can operate easily with the help of a highly capacitive touchscreen.,While iOS is used by smartphones made by Apple only,Android is an open source OS used by nearly all the other manufacturers of smartphones.,Tablet PC,as it is called makes available capabilities of an enriched multimedia device allowing the user to experience audio and video files on a bigger screen which is normally around 10 inches,just a little bit smaller than a laptopToday,tablets are coming equipped with dual camera both for capturing HD,（,high definition,）,videos and to make video chatting and video calling possible.,Exercise,Simple writing,Please describe the difference between smartphone,tablet and laptop.,Exercise,THANK YOU,！,Lesson,Whats inside my laptop2,1.What do you know about your computer after you have learned Lesson1?,2.Whats the function of the motherboard in your computer?,Warm-up Exercises,motherboard,底板，主板，母板,printed circuit board,印刷电路板,microprocessor,微处理器,transistor,晶体管,manipulate,操作，处理，控制,critical component,关键部件,BIOS,基本输入,/,输出系统,spine,脊柱，脊椎,divide up,分割,gut,内脏,power supply,电源,Words Preparation,power socket,电源插座,charge,充电,hard drive,硬盘驱动器,modem,调制解调器,radio transceiver,无线电收发机,self-explanatory,不言自明的，不需要加以说明的,overheating,过热,externally,外表上,Words Preparation,The Computer Brain,The base of operations for the brains of a computer is the motherboard.The motherboard serves as a literal foundation for many of the other elements inside your computer.Its a large printed circuit board.,The motherboard provides the connections and sockets that let other components communicate with each other.,The computer brain is a microprocessor called the central processing unit(CPU).The CPU is a chip containing millions of tiny transistors.Its the CPUs job to perform the calculations necessary to make the computer work-the transistors in the CPU manipulate the data.You can think of a CPU as the decision maker.,Text,主板提供接线和接口让其他部件相互通信。,Another critical component in computers is memory.The two most important kinds of memory are read-only memory(ROM)and random access memory(RAM).Computers can read data stored in ROM,but cant write new data to it.With RAM,computers can read from and write to that memory.,A chip called the Basic Input/Output System(BIOS)works closely with the CPU.BIOS is a specific kind of ROM.,If you think of the CPU as the brain of the computer,then you might consider BIOS to be the spine.,Its the job of BIOS to handle interactions between the software running on a computer and the machines hardware components.,Text,如果把,CPU,看做计算机的大脑，那就可以把,BIOS,比作计算机的脊椎。,Other Computer Parts,So what else is inside your computer?We can divide up the guts of a computer into five categories.,1.Power supplies and batteries,The power supply component provides a supply of electricity throughout the rest of the computer.,When you plug your computer into a power socket,electricity flows from the cord into a shielded box containing a transformer.,If youre using a laptop,some of that power goes to the laptops battery to charge it.Computers have a small battery inside them that helps preserve data stored in a special chip in charge of maintaining information about your computers hardware.It also powers a clock,which is why your computer should keep time accurately even if you turn it off or unplug it.,Text,当你接通你的计算机电源时，电流就从电线中流入含有变压器的的屏蔽盒里。,2.Drives,The drives in a computer are the devices that let you store and recall data and applications.Most computers have a hard drive.Older computers used floppy disk drives.Newer computers have optical storage drives like CD-ROM or DVD-ROM drives.,3.Modems and Wi-Fi cards,Modems are machines that let computers communicate with other computing systems.Modems are closely related to wireless cards,which are radio transceivers that can send and receive data through a specific frequency of radio waves.,Text,4.Sound and graphics cards,Sound and graphics cards are pretty self-explanatory.They give your computer the ability to display graphics or play sounds and music.,5.Cooling systemsCooling systems typically include heat sinks and fans.Overheating can be a serious problem with computers,causing performance to suffer to the point of a system failure in some cases.Heat sinks absorb heat and move it away from critical components.Fans give computers a way to exhaust heat externally.Some computers have more advanced liquid-cooling systems.A water-cooling system uses tubes of flowing water to absorb heat and move it away from critical components.,Text,A motherboard is also known as a main board,system board and logic board.A common abbreviation is mobo.They can be found in a variety of electrical devices,ranging from a TV to a computer.Generally,they will be referred to as a motherboard or a main board when associated with a complex device such as a computer,which is what we shall look at.Put simply,it is the central circuit board of your computer.All other components and peripherals plug into it,and the job of the motherboard is to relay information between them all.Despite the fact that a better motherboard will not add to the speed of your PC,it is none-the-less important to have one that is both stable and reliable,as its role is vital.,A motherboard houses the BIOS(Basic Input/Output System),which is the simple software run by a computer when initially turned on.Other components attach directly to it,such as the memory,CPU(Central Processing Unit),graphics card,sound card,hard-drive,disk drives,along with various external ports and peripherals.,Key TermsMotherboard,Questions,Whats the base of operations for the brains of a computer?,What does the motherboard act as?,How many categories can we divide up the guts of a computer into?what are they?,Do sound and graphics cards give your computer the ability to display graphics or play sounds and music?Exercise,Translate the following sentences into Chinese,Computers have a small battery inside them that helps preserve data stored in a special chip in charge of maintaining information about your computers hardware.,Modems are closely related to wireless cards,which are radio transceivers that can send and receive data through a specific frequency of radio waves.,Overheating can be a serious problem with computers,causing performance to suffer to the point of a system failure in some cases.,Exercise,Simple writing,Please describe whats inside your laptop.,Exercise,THANK YOU,！,Lesson,Software3,What is Application Software?,2.What is a platform?,Warm-up Exercises,little more than,仅仅是,application software,应用软件,system software,系统软件,programming software,编程软件,draw on,利用,amount to,相当于,buzz word,术语,application platform,应用平台,Words Preparation,What Is Application Software?,Computer software is the set of instructions and data that tells a computer what to do and how to do it.,Software provides instructions to your computers hardware.Without it,your PC or Mac would be little more than a large paper weight.But software actually comes in three main types:system,programming and application software.System software includes all the stuff that make up a computers operating system(OS),including device drivers,configuration files and other key system components,Text,计算机软件就是告诉计算机做什么和怎么做的命令和数据的集合。,.This is the software that tells the computers hardware what to do and provides a foundation for the system.,Programming software,or middleware,works much like the plumbing in your home by invisibly keeping things running behind the scenes.,Application software,however,is the most important type for computer users because it is used to achieve many of the tasks that make us turn to our computers in the first place,such as word processing,Web browsing and data crunching.,Text,编程软件或者说中介软件，像你家里的水管装置一样，在背后无形地维持着事情的正常运转。,Application software applies the power of system software.This is why when downloading software,you have to find a version that fits with your running operating system(OS).,In essence,that software draws on the OS to create a Word document,spreads sheet or PowerPoint presentation.,Text,其实，软件是利用操作系统创建,Word,文档、扩展空间或者演示文稿的。,Applications and Platforms,A platform is the hardware/software combination in which an application runs.In the early days of computing,this amounted to a computer operating system,which is why some software works with a Windows operating system,while other software operates only on iOS or Unix.Over the years,however,a few dimensions have been added with the development of new software delivery methods.The buzz word for this phenomenon is cloud computing,which means that many applications no longer rely on operating systems.Rather,they run on the Web and may be accessed through a browser.,Text,As you may have guessed,the final application platform-increasingly becoming the most important-is the mobile platform.,From Applications to Apps,In most cases,the term app is used to refer to a mobile application.,This type of software is often much smaller and more specific than that on a PC,.So,while a slick software suite provides full functionality,an app usually has an arrow and specific function-or very little function at all,as many mobile applications are designed for entertainment.,This type of application was popularized by Apple through its App Store,where applications are sold for a few dollars a piece.These apps work only on Apple devices.So,other companies have followed Apples lead,creating apps for Android and Black Berry devices.,Text,这种软件相较于计算机上的更小更精确。,Software is a general term for the various kinds of programs used to operate computers and related devices.(The term hardware describes the physical aspects of computers and related devices.),Software can be thought of as the variable part of a computer and hardware the invariable part.Software is often divided into applicationsoftware(programs that do work users are directly interested in)and system software(which includes operating systems and any program that supports application software).The term middleware is sometimes used to describe programming that mediates between application and system software or between two different kinds of application software(for example,sending a remote work request from an application in a computer that has one kind of operating system to an application in a computer with a different operating system).,An additional and difficult-to-classify category of software is the utility,which is a small useful program with limited capability.Some utilities come with operating systems.,Key Terms,Software,Like applications,utilities tend to be separately installable and capable of being used independently from the rest of the o