什么是計算機

What Is a Computer   

　　What is a computer? Generally speaking, a computer is an electronic and machinery equipment, which has many uses, such as accepting, manipulating, storing, and representing information. It can replace people in dull, time-consuming, routine tasks．   
　　Inside the computer, there is a complicated.network of electronic circuits that control switches or levels. They both have two possible states：For the switches are on or off and the levels arc high or low that is the reason why binary is widely used to represent information in computer.   
　　Computers can store and process not only letters－numbers and characters but also sounds，image, and information of other forms．Though they cannot make suggestions for people, they can do calculating, communicating, word-processing, information call ectingand some other management. Under the control of the program, computers even can do some great things．Such as logic inference, aiding decision, aiding design. Theory proving, etc.
　　The reason why computers can work in a rather high speed is very simple: t is an electronic ma-chine．For example, as soon as you turn on the switch the light gets light at the same time．How fast the speed of the current is! Computers do all they can do instantaneously.   
　　Computers are powerful．They can solve problems for people by carrying out instructions given to them. A sequence of instructions describing how to perform a certain task is called program. Before the programs in a computer can be executed, they must be converted into a limited set of simple instructions．And then the electronic circuits of each computer can recognize and directly execute them.   
　　Computers have circuits which can make decides．Therefore, they can solve a series of problems and make hundreds, even thousands, of logical decisions without becoming tired or bored, but they have no originality.   
　　There are times when a computer seems to operate like a mechanical "brain"，but its achievements are limited by the minds of human beings．It is a useful tool for people.

翻譯：

什么是計算機   

　　什么是計算機呢？總的說來，計算機是一種用途非常廣泛，能夠接收、加工、儲存和傳遞信息的電器設備。它能夠代替人們從事那些單調的，費時的日常工作。
　　計算機內部具有復雜的電路網絡，它可控制開關或電平，這兩者都有兩種狀態：開關的通、斷，電平的高、低。這就是在計算機中廣泛使用二進制來表示信息的原因。   
　　計算機不僅能夠存儲并處理字母、數字和字符信息，也能存儲并處理諸如聲音、圖像等其它形式的信息。盡管計算機不會替人們出主意，但它能夠進行計算機，通訊，文字處理，信息收集和其它的一些管理。在程序的控制下，計算機還能勝任諸如邏輯推理、輔助決策、輔助設計、定理證明等工作。   
　　計算機能極為高速工作的原因很簡單，因為它是一臺電子裝置。拿開電燈舉個例，當你合上開關，幾乎同時電燈就亮了。電流速度太快了！計算機在瞬間完成它們所能做的事情。   
　　計算機是極有能力的。它們能通過執行所給的指令為人們解決問題。一系列描述怎樣執行某個任務的指令叫程序。在（某臺）計算機中的程序被執行之前，它們必須轉換成一系列簡單的指令，然后計算機中的電子線路就能識別并直接執行它們。   
　　計算機具有進行邏輯判斷的毛路。所以，它能解決一系列問題．做出成百甚至上千個邏輯判斷而不感到厭煩，但它們沒有創造力。   
　　計算機有時會像機械腦一樣二作，但它的能力卻受到人類大腦巴限制。所以，計算機是人類有用的工具。