invented cobol

The problem of character encoding seems to be very small, often overlooked by technical staff, but it can easily lead to some puzzling problems. Here is a summary of the character encoding of some of the popular knowledge, I hope to be helpful to everyone.I still have to start with the ASCII code.Speaking of character encoding, we have to say a brief history of ASCII code. Computers were invented at the outset to solve the problem of digital computing

Computer fable spring True love and new life 1 two students There was a student who wore ancient armor in his spare time, and now he was with those who had similar ideas, imitating Guizhou and his wife in ancient society. Another student is majoring in computer science. He asked a student why he was walking around in a strange suit. The latter replied, "how boring the 20th century was. You spent so much time in the middle of the cold machine, and I was looking for the beauty and Romance

. So one night, 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

secret was opened by the claim to return all rights to the patent and to pay a royalties of 20 billion yen.1993. Nakamura invented the Blu-ray diode, by the Japanese and Asian companies to apply for a patent.In December, Japan and Asia began to produce blue-light diode lighting products, and achieved huge profits. However, Japan and Asia company paid only 20,000 yen for the "reward" (Patent and patent registration 10,000 yen each).2000. Nakamura deci

After talking so much, let's get started. This article is long. Please watch it with patience.What is shopping cart?A traditional shopping cart is a type of trolley in a supermarket that stores the selected item temporarily before the customer settles. In June 1937, American Sylvan Goldman invented the first shopping cart, followed by shopping cart popular stores in various countries. In China, we are familiar with the "American shopping cart

The blocking model was first introduced as an example to illustrate the computer network. It is also the simplest. The basic principle is: first establish a socket connection and then operate on it, for example, read data from the socket. Because network transmission takes some time, even if the network is smooth, it takes time to accept data operations. For a simple single-threaded program, the process of receiving data cannot process other operations. For example, a window program does not wor

Modern Urban White-Collar Workers who are used to living in disguise have invented the one-night stand to satisfy their desire to have zero contact with their bodies, A new group-single-stick group was created, and a new holiday-single-stick festival was created. Major manufacturers are desperate to make discounts on this day (we can see how high their normal profits are), but it is said that the hotel business on this day is the best and they have to

optimizations for the LALR parser that wocould further improve its memory efficiency. The formal presentation of these optimizations was made in 1982. In 1965, Donald Knuth invented the LR syntax Parser (derived from left to right, rightmost), which can recognize any deterministic context-independent language in linear time. However, the rightmost derivation requires a large amount of memory consumption. At that time, due to limited computer memory,

languages. Now, it is hard to determine which language is mainstream. Everyone is working hard to develop various languages. We need so many languages, of course, because of the booming application of electronic products. It is estimated that the number of users in many programming languages has exceeded that in many human languages. Humans have invented various languages of forest to communicate with these non-biological beings and to allow them to

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 invented by grandpa Dai (should be said to be a concept. In addition, algo60 gave Grandpa Dai an in-depth consideration of the problem of multi-channel programming, and finally invented the

penetrated by sugar-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. 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: rec

[Preface] Design pattern is a design pattern. It is usually a problem solved by the predecessors during the software development process.Ready-to-use routines, which can benefit a lot. Anti-pattern is also a set of ready-made routines, but they are ready-madeIf you want to avoid them, you will also be able to benefit a lot. More translations and original works of Korner HillArticleYesFind http://blog.csdn.net/kornerhillon the blog. Many words in the computer field lack accepted Chinese trans