计算机二级word科技论文的译文

Information literacy Knowing how to find data from several sources, select relevant material, analyse and organise it into a form that can be used to make Computers have become the tools people use to access and manage Information technologists are people who analyse and design the What is a computer? Tradition definitions of computers include �6�1 A machine that accepts data and processes it into use �6�1 A computer is a binary, digital, electronic, stored program �6�1 While a computer is commonly a digital machine, analogue machine do An electronic device, operating under the control of instructions stored in its own memory unit, that can accept data (input), process data arithmetically and logically, produce results (output) from the processing and stores results for future Many computers receive and send data (communicate) across networks LAN and W A computer system consists of hardware and What is hardware? Hardware Hardware is physical devices or components that can be physically handled – you can thou Input Devices Input devices convert data that humans collect into coded electrical signals that a computer can The central processing unit The electronic processing takes place in the CPU The CPU consists of �6�1 A control unit that controls all of the computer’s functions and an �6�1 Arithmetic and logical unit (ALU) that performs any calculation Memory Memory holds all programs and What is RAM currently open? Data (notes) Word processor OS Output devices Output devices convert the computer’s electronic signals back into information Secondary storage devices These devices store programs and data The programs and data are not necessarily (or likely to be) in current E DVD CD Communication devices These devices enable a computer to connect to another List the six different type of hardware? Secondary storage(external), input, processor, output , memory, C Name eight pieces of hardware USB, keyboard, monitor, screen, RAM, ROM, VDU, M The system unit and peripheral devices The system unit is the computer Peripheral devices are any devices around the outside, or in other words, plugged into the (back of) the Peripheral devices include the key board, mouse, printer, joy stick and Peripheral devices are any devices around the outside, or in other words, plugged into the (back of) the Peripheral devices include the keyboard, mouse, printer, joy stick and What else does a computer have? Software Software is a computer program ,which is a detailed set of instructions that directs a computer to perform the tasks necessary to process data into These instructions are written in languages that computer can Software includes computer games, a word processing packing, an accounting package, amongst Definition of a computer system �6�1 A computer system is the configuration of hardware and software, functioning together, to process data into useful information, in order to achieve a purpose for a human What is data? �6�1 Data is raw facts, be they numbers, words, images and sounds, that can be input into a Mary a name is a piece of data What is information? �6�1 Information is processed data, that has meaning and is John is a list of names who scored an A grade on an exam John A Chai A Pam A Commodore $23 500 Magna $21 500 Falcon $19 800 The system unit contains the �6�1 Motherboard �6�1 CPU �6�1 Memory �6�1 Other electronics It is where the computer program instructions are executed and the data is manipulatedThe Processor CPU The CPU interprets and carries out basic instructions that operate the computer, the CPU contain the �6�1 Control unit and the �6�1 Arithmetic logic unit Control unit The control unit directs and coordinates the computer’s For every single instruction, the control unit repeats four basic operations, �6�1 Fetching �6�1 Decoding �6�1 Executing �6�1 Storing CPU speed The CPU’s speed may be measured in MIPS The number of millions of instructions per second Arithmetic/logic unit The ALU performs all calculations, which involve �6�1 Arithmetic operations 2+3 �6�1 Comparison operations age>=17 �6�1 Logical operations pass Processing instructions A CPU may begin executing a second machine cycle before completing the first-referred to as Current CPU’s can pipeline up to 4 Storage within the CPU Registers temporarily hold data and The computer’s clock A System clock is necessary to control the timing of all computer Each tick of the clock is referred to as a clock Clock speed is the speed at which a processor executes A hertz is one cycle per second and a megahertz is 1024 by1024 and a gigahertz is 1024 by 1024 Memory Memory is the temporary storage place for data and (program) Memory is measured in �6�1 Kilobytes 1024 bytes 2^10 �6�1 Megabytes 1024* 1024 bytes 2^20 �6�1 Gigabytes 1024*1024*1024 bytes 2^30 Representation of data Digital computers are built from many small electronic Each circuit, at any point of time can be turned OFF or ON Hence these devices are called two state Binary Digit 0and 1 Each off or on digital value is called a bit, short for binary A 1 bit computer would be able to distinguish between two values-characters, symbols or Hardly sufficient for the characters on the keyboard Bits Characters 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256

⊙﹏⊙b汗啊楼主你不会是我朋友吧？她也说要去师大念自考英语来着( ⊙ o ⊙ )！额，我不知道你是念专科还是本科，具体的英语专业是什么，所以全发上来了，不要看眼花了O(∩_∩)O哈！【开设课程】 【专科】学历课程 【英语】专业 专业课：综合英语（一）、综合英语（二）、英语阅读（一）、英语阅读（二）、英语听力、英语口语、英语写作基础、英语国家概况 公共课：大学语文、思想道德修养与法律基础、毛泽东思想邓小平理论和三个代表重要思想概论 选修课：计算机、翻译、外贸函电、酒店英语、商务英语口语、词汇学、走遍美国、英语报刊选读（选修课为非考科目） 基础课：英语精读、英语泛读、新概念二、新概念三、英语语音、基础听力、基础口语、英语语法、PETS二级、基础写作、展望未来（专为“英语三专”第一学年开设的基础课程） 【商务英语】专业 专业课：综合英语（一）、综合英语（二）、英语阅读（一）、英语阅读（二）、英语听力、英语口语、英语写作基础、英语国家概况、实用商务英语基础（二）、大学英语翻译 公共课：大学语文、思想道德修养与法律基础、毛泽东思想邓小平理论和三个代表重要思想概论 选修课：计算机、英语报刊选读、词汇学、走遍美国、新概念三、CET四级、外贸函电、PETS三级、酒店英语、实用翻译（选修课为非考科目） 【本科】学历课程 【商务英语】专业（独立本科段） 专业课：日语、外贸口语、商务英语（一）、商务英语（二）、国际商务合同、工商导论、市场营销学（一）、国际支付、国际商务虚拟运行、商务英语沟通、国际贸易实务（一）、国际商务谈判、毕业论文写作 公共课：中国近现代史纲要、马克思主义基本原理概要 选修课：计算机、英语报刊选读、雅思、词汇学、法语入门、现代语言学、实用翻译、CET六级（选修课为非考科目，晚上周末班不开设选修课） 【英语翻译】专业（独立本科段） 专业课：高级英语、英美文学选读、英汉语言文化比较、中级英语笔译、中级英语口译、高级英语笔译、同声传译（英语）、科技英语翻译、商务英语翻译、第二外语（日语）、毕业论文写作 公共课：中国近现代史纲要、马克思主义基本原理概要 选修课：计算机、英语报刊选读、雅思、法语入门、英语报刊选读、现代语言学、CET六级（选修课为非考科目，晚上周末班不开设选修课） 【英语】专业 专业课：高级英语、翻译、口译与听力、英语写作、英美文学选读、英语科技文选、旅游英语选读、语言与文化、第二外语（日语）、毕业论文写作 公共课：中国近现代史纲要、马克思主义基本原理概要 选修课：计算机、英语报刊选读、雅思、词汇学、法语入门、阅读与应用、现代语言学、实用翻译、CET六级（选修课为非考科目）

-_-! 想的很是美美，英语论文就算了，随便找找，还得翻译中文哇天下没那等没事哟~ 祝福LZ呢~

Information literacy Knowing how to find data from several sources, select relevant material, analyse and organise it into a form that can be used to make Computers have become the tools people use to access and manage Information technologists are people who analyse and design the What is a computer? Tradition definitions of computers include • A machine that accepts data and processes it into use • A computer is a binary, digital, electronic, stored program • While a computer is commonly a digital machine, analogue machine do An electronic device, operating under the control of instructions stored in its own memory unit, that can accept data (input), process data arithmetically and logically, produce results (output) from the processing and stores results for future Many computers receive and send data (communicate) across networks LAN and W A computer system consists of hardware and What is hardware? Hardware Hardware is physical devices or components that can be physically handled – you can thou Input Devices Input devices convert data that humans collect into coded electrical signals that a computer can The central processing unit The electronic processing takes place in the CPU The CPU consists of • A control unit that controls all of the computer’s functions and an • Arithmetic and logical unit (ALU) that performs any calculation Memory Memory holds all programs and What is RAM currently open? Data (notes) Word processor OS Output devices Output devices convert the computer’s electronic signals back into information Secondary storage devices These devices store programs and data The programs and data are not necessarily (or likely to be) in current E DVD CD Communication devices These devices enable a computer to connect to another List the six different type of hardware? Secondary storage(external), input, processor, output , memory, C Name eight pieces of hardware USB, keyboard, monitor, screen, RAM, ROM, VDU, M The system unit and peripheral devices The system unit is the computer Peripheral devices are any devices around the outside, or in other words, plugged into the (back of) the Peripheral devices include the key board, mouse, printer, joy stick and Peripheral devices are any devices around the outside, or in other words, plugged into the (back of) the Peripheral devices include the keyboard, mouse, printer, joy stick and What else does a computer have? Software Software is a computer program ,which is a detailed set of instructions that directs a computer to perform the tasks necessary to process data into These instructions are written in languages that computer can Software includes computer games, a word processing packing, an accounting package, amongst Definition of a computer system • A computer system is the configuration of hardware and software, functioning together, to process data into useful information, in order to achieve a purpose for a human What is data? • Data is raw facts, be they numbers, words, images and sounds, that can be input into a Mary a name is a piece of data What is information? • Information is processed data, that has meaning and is John is a list of names who scored an A grade on an exam John A Chai A Pam A Commodore $23 500 Magna $21 500 Falcon $19 800 The system unit contains the • Motherboard • CPU • Memory • Other electronics It is where the computer program instructions are executed and the data is manipulatedThe Processor CPU The CPU interprets and carries out basic instructions that operate the computer, the CPU contain the • Control unit and the • Arithmetic logic unit Control unit The control unit directs and coordinates the computer’s For every single instruction, the control unit repeats four basic operations, • Fetching • Decoding • Executing • Storing CPU speed The CPU’s speed may be measured in MIPS The number of millions of instructions per second Arithmetic/logic unit The ALU performs all calculations, which involve • Arithmetic operations 2+3 • Comparison operations age>=17 • Logical operations pass Processing instructions A CPU may begin executing a second machine cycle before completing the first-referred to as Current CPU’s can pipeline up to 4 Storage within the CPU Registers temporarily hold data and The computer’s clock A System clock is necessary to control the timing of all computer Each tick of the clock is referred to as a clock Clock speed is the speed at which a processor executes A hertz is one cycle per second and a megahertz is 1024 by1024 and a gigahertz is 1024 by 1024 Memory Memory is the temporary storage place for data and (program) Memory is measured in • Kilobytes 1024 bytes 2^10 • Megabytes 1024* 1024 bytes 2^20 • Gigabytes 1024*1024*1024 bytes 2^30 Representation of data Digital computers are built from many small electronic Each circuit, at any point of time can be turned OFF or ON Hence these devices are called two state Binary Digit 0and 1 Each off or on digital value is called a bit, short for binary A 1 bit computer would be able to distinguish between two values-characters, symbols or Hardly sufficient for the characters on the keyboard Bits Characters 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256