A past life of a computer

Now we live in the intelligent age, when we use the skilled way to beat the keyboard or mobile phone, have you ever wondered how he came? I have made a simple arrangement based on my own experience and literature, the purpose of which is to make Chinese friends interested in computer, to understand the history of computer and to invent his great man in the shortest time.

The advent of computers in a war era (World War II), can not be stingy to say that the war has opened the era of modern computers, then who created his former? He is Turing. 650) this.width=650; "Src=" http://s4.51cto.com/wyfs02/M02/7A/C7/wKioL1a1cCLjbK4RAABTbZ72 Kdg607.jpg "title=" download. jpg "alt=" wkiol1a1ccljbk4raabtbz72kdg607.jpg "/>650" this.width=650; "src=" http:// S3.51cto.com/wyfs02/m00/7a/c7/wkiom1a1cc6dgmy_aack-sb18ve895.jpg "title=" images (1). jpg "alt=" wkiom1a1cc6dgmy_ Aack-sb18ve895.jpg "/>

However, attributing the honor of creating computers to Turing may have been unexpected to the present public, as the popular computer history books have written:

1943 john mauchly j. Presper Eckert eniac 1946 5000 operations, the entire machine occupies an area of square feet.

a computer that can actually work is actually from ENIAC To begin with, but what is not stated in the popular history book is that this computer, and even so far as all the computers of the future, their core design, has already 1936 Year by - year old British college student Turing completed.

After he designed this computer as the mother of all computers to be known as the Turing machine, what everyone else needed to do was to find different manufacturing materials to build a real machine, or to find a way to improve the speed of the machine. Actually just Turing this person, is already a historical legend. We are here not too much description, we just enjoy the computer to bring me the convenience, the heart remember this great man can be.

Turing is a tape marker (tape-marking) machine ( Span style= "font-size:21px;font-family: ' The song body '; color: #252525; background: #FFFFFF;" > like the phone company's kind of The collection after the action method is abstracted. Turing this through the finite number (finite number) The way the machine is presented, the program is laid out like Feng · Connaught Iman Structure The basis for storing the data in the computer as well.

after Turing, the American mathematician von Neumann proposed the logical structure of the computer as follows

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With the achievements of the above-mentioned great men, and later on them to the corresponding parts of the selection of the best material combination together, we can now see the physical machine.

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with the development of computer hardware, human beings hope to communicate with him, so Calculation the machine language is produced , computer language is the medium of transmitting information between man and computer.  

The development of computer programming language has experienced the course from machine language, assembly language to high-level language.

Computer languages are divided into four main categories:

- low language
- advanced language

 - special language
- scripting language

1 , low-level language
- Machine languages, assembly language, and symbolic languages.

 - Assembly Language source program must be compiled, generate the target file, and then execute.

2 , high-level languages

- High-level language source program can be interpreted, compiled two ways to execute. Usually use the latter one.

we use the C language is the latter used.

3 , Special language

    - Special language is a special thing to do , For example HTML, and so on.

4 , scripting language

- scripting language is the language used to solve small problems, such as shell and so on.

Now that we know about the computer, we'll talk about his present.

This article from "Lele Run" blog, please be sure to keep this source http://10851431.blog.51cto.com/10841431/1741304

A past life of a computer