typewriter invented

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Programmer's point of view-who is the hero?

separated from hardware. In essence, the two can switch between each other rather than absolutely mutually exclusive. However, to a large extent, it should be said that programs have changed the world, iPad, iPhone, and PC, router or server. After all, it's just a bunch of programs added to the "Smelly skins. There is no depression in the field of electronic engineering and related manufacturing. I just want to emphasize the soul role of software. As a programmer, I personally want to pay tribu

The greatest ten algorithms in the 20th Century

Http://blog.csdn.net/v_JULY_v/archive/2011/01/10/6127953.aspx The greatest ten algorithms in the 20th Century Translator: July November January 10, 2011 ------------------------------------ References:The best of the 20th Century: editors name top 10 algorithms.By Barry A. CIPRA. Bloggers:1. In addition to the fast sorting algorithm or the fast Fourier transformation algorithm, the top ten algorithms in the 20th century only need to be slightly understood.2. This Article is not the latest ar

Review Jack Ma's speech on Yahoo employees

broken bread and then sell it. As a result, the M logo can be seen all over the world. The boss of pizza hut is lazy and puts the pie stuffing in it and sells it directly on the top of the pie. As a result, it is called pizza, which is more expensive than 10. There are also smarter lazy people: So they invented the elevator; They walk lazily, so they make cars, trains, and planes; They killed people one by one, so they

An infinitely small calculus (comeback) for 40 years

In the title of this article, we use the word "restoration", instead of "Resurrection", which is clearly intended, meaning that the infinitely small calculus has restored the glory of the year, I have taken back my crown ". In the past, leveniz invented the "infinitely small" and used it for the analysis and research of the local state of the function. After the computation process was completed, the non-zero infinitely small was abandoned, making peo

Human efficiency or machine efficiency?

for people all the way, however, it has never been our main development goal to improve the efficiency of machine work. This is the "Paradox" that I have just mentioned that makes me confused. Let's take a look at the development path of the programming language to learn more about this trend. First, our early programmers put a line on the tape to represent the holes in the machine code, and then handed it to the machine for processing. Then we invented

The most complete list of programming languages in history _ What do you know?

reconfigure the syntax and semantics of the XL.Procedural programming LanguagesProcedural (imperative) programming means that you need to specify the steps that the program should achieve in its intended state. A procedure is a set of statements that can be referenced by a procedure call. The process helps the code in moderation. Programming makes programs structured and easy to track program flow. Bliss It is a system programming language, one of the most well-known languages bef

Asp. NET review notes (1)

Today is a good day, accompanied by the Morning eight o ' Sun, I carry schoolbag, put on the computer, with a network cable, Fengfenghuohuo rushed to the classroom, because, I finally want to write what the blog content-this is not the end of the final, I write review, although some courses have not finished, but does not affect my review, just, Can also take the things that have not learned before, take advantage of the network, there are teachers, to solve them out ~(i) Web application Fundame

Implementation principle of HTTPS protocol

URLhttp://www.techug.com/The part that I added in bold is the HTTP protocol. Most Web sites use the HTTP protocol to transfer web pages, as well as various things (images, CSS styles, JS scripts) that are contained on Web pages.2. What does "SSL/TLS" Do with the drip?SSL is the abbreviation for foreign language "secure Sockets layer", which is called "Secure Sockets Layer" in Chinese. It was designed by Netscape in the middle of the 90 century. (Incidentally, Netscape not only

Programming experts in post-posting

doctor's hat. The one that makes grandpa Dai really famous is the algo60 developed on X1, one of the earliest advanced languages. Grandpa Dai worked day and night for 8 months, and then he got algo60. He also won the Turing Award in 1972. Because of algo60, Grandpa Dai published a shocking article: recursive programming, so people know that the original advanced language can also implement recursion efficiently. Since then, all programmers are inevitably dealing with the stack, a word

What is pasteurization?

1. What is pasteurization? The milk pasteuration method was invented by the French user Pasteur in 1865. It was improved by future generations to completely eliminate pathogens in beer, wine, milk, serum albumin, and other liquids, it is also a common milk disinfection method in the world. The purpose of pasteurization is to kill all possible harmful microorganisms (including all pathogenic bacteria) in milk ). Before the pasteuration method was

Principles of holographic photos

space position of each point. When a reference beam is used to illuminate a dry film, the light we see is like being sent from the original object. Therefore, we say that it records all the light information sent from the object, and the name of the holographic photo is obtained accordingly. However, laser holographic photos only show a three-dimensional image in the eyes under laser radiation. laser is a expensive device, and a photo must be equipped with a laser, in addition to the possible s

[Original] What is mathematics?

said that God has created natural numbers, and other numbers are invented by humans. Number theory is regarded as pure mathematics, that is, it is too far away from practical application. However, the number theory results of a few hundred years ago seem to have been widely used in a few hundred years. Modern cryptography is based on number theory. The common key cryptography system is based on a large number of prime factors. The Euclidean era prove

Talk about the love triangle between programmers, compilers, and CPUs.

CPU companies to consider things, and software engineers completely unrelated.2. Early Paper punch Programmer(1) At the earliest, the CPU was very simple, the instruction set was very small and the number of binary bits was not much. At that time the compiler was not invented, and the programming language was not invented, then it was programmed directly with binary.(2) Summary: The earliest programming ha

Background of WEB page tool Language XML

Like HTML, XML comes from StandardGeneralizedMarkupLanguage, which is a general Markup Language (SGML) for scale. Before the Web was invented, SGML already existed. As its name implies, SGML is a general language that uses tags to describe document materials. Like HTML, XML comes from Standard Generalized Markup Language (SGML. Before the Web was invented, SGML already existed. As its name implies, SGML is

Reprinted: true programming experts-encourage computer students

own doctoral thesis around it and put on his doctor's hat. The one that makes grandpa Dai really famous is the Algo60 developed on X1, one of the earliest advanced languages. Grandpa Dai worked day and night for 8 months, and then he got Algo60. He also won the Turing Award in 1972. Because of Algo60, Grandpa Dai published a shocking article: Recursive Programming, so people know that the original advanced language can also implement recursion efficiently. Since then, all programmers are inevit

Computer science in my mind

-coated shells and took over the hot potato. Two or three years later, he not only made real-time interruptions, but also wrote his own doctoral thesis around it and put on his doctor's hat.   #61548; the one that makes grandpa Dai really famous is algo60 developed on X1, one of the earliest advanced languages. Grandpa Dai worked day and night for 8 months, and then he got algo60. He also won the Turing Award in 1972. Because of algo60, Grandpa Dai published a shocking article: recursive program

Advantages and disadvantages of mainstream programming languages

templates, yes, no, no, supported object-oriented, yes, yes, no, you may have some questions about my language evaluation, please first read my other article Discrimination based on object and object-oriented programming paradigm and Application in mainstream programming languagesClarify related concepts. I am not very familiar with object-oriented and Object-based and popular definitions. Advantages and disadvantages of C Language C Language Let's review the history first. The computer uses C

Rod Johnson in spring and wheel Theory"

, with spring in the world, especially when it is blowing to our motherland, it may be the reason for loving the house and the birds (or birds, "Wheel Theory" is also regarded by many spring fans as the creed and principle for people to do things and do things. Is there a problem? Of course there are serious problems. There is no error in the wheel theory. The mistake is the misuse of the wheel theory. The mistake is that everyone is fooled by Uncle Rod Johnson and does not know or admit it. Any

Reverse polish and reverse Polish expressions

Reverse polish and reverse Polish expressions Poland is a great country. The radioactive element Po in the periodic table was discovered by Mrs Curie and named after her motherland Poland. Polish Notation and Reverse Polish Notation, which are commonly used in computer science, are also named in Poland. China is also a great country, and I know the Chinese remainder theorem is named after China. Other things named after the Chinese title include the Chinese knot, the Chinese Dragon (Chinese Dra

Something about the transport layer protocol that comes to mind from HTTP 2.0

transport layer protocol in the transport layer. Only TCP and UDP are enough. If you want to extend it, You can extend it on UDP.3. several misunderstandings about TCP and UDP before protocol transformation, first clarify several misunderstandings, that is, you need to know why UDP is used instead of TCP, or vice versa, you always think TCP is better than UDP:Misunderstanding 1: UDP is more efficient. Many people think it is because UDP is more efficient. Because ACK is not required, it is most

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