invented cobol

Are you still complaining about too few WIFI hotspots and unstable signals? In the future, if you have a light bulb, you will have wireless network signals, and the transmission speed will be as high as 1 Gbps, much higher than that of WIFI. This technology was invented by Herald Haas, a British university technician, and his team-the use of light to transmit data, often known as visible light communication VLC ). However, there is no obstacle to achi

I really didn't expect that I would do it in COBOL, even if I knew the history of computers: Post a post that has been transferred n times 1. How old is Cobol?For this question, read a book and check the information. COBOL is the abbreviation of common business oriented language. It is mainly used to solve a large number of data processing problems in business an

Abbreviations: COBOL(Common Business Oriented Language) Chinese Translation: Cobol Language Interpretation: a programming language similar to English that is suitable for business and data processing. This language accurately expresses the business data processing process. COBOL is one of the oldest advanced programming languages and the first commercial languag

I have recently started learning Cobol. Of course, I need to understand some background and application fields and prospects for learning a language. Let's talk about my questions and understanding. 1. How old is Cobol?For this question, read a book and check the information. COBOL is the abbreviation of common business oriented language. It is mainly used to s

COBOL language IntroductionCOBOL Introduction--Business computing preferred Language COBOL is the acronym for the Common Business oriented Language (general commercial language). Widely used in the field of data management, such as accounting work, statistical reports, planning, personnel management. is referred to as the "language for Administration".Characteristics of data processing:The arithmetic comput

Recently I have been busy with my work and my graduation work, so I am not very busy. Now we have a bit of free time. Let's take a look. Since so many people need the COBOL teaching materials, I will recommend them to you.It is in the IBM library, and I think it is comprehensive. As long as you finish reading this, it should be okay with Cobol. IBM Library ReaderHttp://www-1.ibm.com/support/docview.wss?

Interest calculation is an important business of banks, including daily proxy customer collection, calculation of customer interest, and annual interest calculation. Currently, most of this work is performed on the Safe Application System Platform of the IBM es9000 host. The online program and the on-line interest rate program are implemented in the IBM 370 assembly language. For ease of reading and writing in assembly language, the data storage format is defined in the data stored in the VSAM f

system R D". That is to say, a single statement is put forward, which makes you think is the case. Once it is actually done, I think this is not the case. The harm is that it sounds right. It is very wrong. The more it is done, the farther it is wrong, and the deeper the harm. "Don't invent the wheel yourself" is right, but foreigners have never said that you also don't need to "understand how the wheel was invented ". In my real life, I found t

Leibniz (1646-1716) was born in laibniz, Germany. During his youth, Leibniz studied law. In 1672, raprenz traveled to Paris, France, where he came into contact with some geometric works. From then on, raprenz fell into the "Obsession" of mathematics research. In 1675, in order to study the local State (or behavior) of function f (x) near a "point X", 29-Year-Old laveniz invented a "new method". That is to say, leveniz introduces a very small "ideal nu

mutual transcoding support: Std::codecvt_utf8 Encapsulates UTF8-related encoding conversions Std::codecvt_utf16 Encapsulates UCS2-related encoding conversions Std::codecvt_utf8_utf16 Encapsulates the encoding conversion of UTF8 and UCS2 for C + + cross-platform development, we often encounter the default with that encoding, we will find that the Windows UCS2 solution is heterogeneous for other platforms, generally there are

The format of the COBOL source program is as follows: Each line starts with a sequence number with six characters. You can enter limit 10 or limit 20 to indicate the rows. The sequence number area is followed by an indicator area of a character (7th characters), as shown in the first line. You can use "*" and "/" to represent comments, "_" to represent continued rows, and "D" to represent debugging. The indicator area is followed by four characters (8

The title on the csdn homepage is uncomfortable: The ruby language is just a glimpse I don't know who invented the word "yunhua Yixian. If you do not have the Xinhua Dictionary, you can check Kingsoft's word Overlord:"FlashTánhu transfer-y limit sià n[Flower briefly as the broad-leaved epiphyllum; last briefly; be a flash in the pan] after the opening of a superior banhua in India, I will soon be thankful. It is a metaphor for the fact that there i

The first time I got in touch with Cobol today, the lecturer was an English speaker. It was really hard to take the course. Alas .... the English is not good. There are two books in China that feel okay, the simple guide of COBOL and the programming language design of COBOL (TAN haoqiang) The following is the first program and a hello program. The tool is First o

Next to the book (an entry to the COBOL study notes)SlaveProgramWe can see that the COBOL program is divided into four parts:Identification Division.Environment Division.Data Division.Procedure division. For more information about the functions of each part, see Chapter 1 Cobol. Here we mainly look at the content in procedure Division. This is the core.Process

Learn Basic Concepts First1.COBOL character : contains: user-defined words user-defined characters ? System-names ? Reserved words keywords 2. user-defined character user-defined words: Legal definition: ? A-Z ? A-Z ? 0-9 ? -(hyphen). 3. System name system-names Computer-names ? Language-names ? Implementor-names: Environment-name Assignment-name 4. keyword Re

The format of the identity department:code example:Identification Division.Program-id. Idsample.AUTHOR. PROGRAMMER NAME.Installation. COBOL Development CENTER.Date-written. 08/27/88.Date-compiled. 09/01/88 12:57:53.SECURITY. Non-confidential.Format of the Ministry of the Environment:code exampleEnvironment Division.CONFIGURATION section.Source-computer. ibm-as400.Object-computer. ibm-as400.Special-names. Cð1 is top-of-page.Source-computer defines the

COBOL syntax and grammar (1) RedefinesDifferent variables can be used to describe the same memory.01 part_recode usage display03 part-type picture...03 part_type_a.05 part_number picture...05 part_cost picture...03 part_type_ B redefines part_type_a.05 upc_code picture...03 part_type_c redefines part_type_a.05 ISBN picture...Based on part_type, choose part_type_a, part_type_ B, or part_type_c.Rules:The length of part_type_ B and par

Recursion is rarely used in Cobol. It is also boring to see this example in IBM book. Identification Division. Program-id. recutestRecursive. **************************************** *** * Recursive Test **************************************** ** Environment Division. Data Division. Working-storage section. 01 numb PIC 9 (4) value 5. 01 fact PIC 9 (8) value 0. Local-storage section. 01 num PIC 9 (4 ). Procedure division. M

of the memory Description of the file General formatFD file name (internal file name)01 Record Name05 data item 1 PIC ...05 Data item 2 PIC ...An FD statement is a file descriptor that describes the properties of a file and a record, such as the record name, format, and length .All data groups and data items under the FD statement make up a record of the file.Record Description: The record description begins with a 01-layer number followed by a record name. The data format used to define r

The difference between Union and struct is: 1. For a union variable, all member variables share a piece of memory. The size of the memory is determined by the maximum length of these member variables. 2. The memory allocated by union is