gnu cobol

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

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

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

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

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

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 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

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

Preface This article is based on the translation of the first chapter of Autotools-a Practioner's Guide to GNU Autoconf, Automake, and Libtool, omitting some of the statements. Body As the preface says, the GNU Autotools is designed to make life easier for end users, not defenders. Even so, in the long run, using Autotools as a project manager will make your job easier, though it may not be the reason yo

From: http://os.51cto.com/art/200608/30399.htm1. What is Linux?2. What is GNU?3. What is Gnu/linux?what is LinuxIt is believed that people who know some it knowledge have heard the term Linux. The Linux entry on Wikipedia is the most classic and the most accurate description (Http://zh.wikipedia.org/wiki/Linux), which is applied directly, eliminating the suspicion of swim.Linux operating System (Linux), is

Article title: GNU and Linux give GNU split members a history lesson. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In forums such as Slashdot, people often attack GNU. in my opinion, they have a lack of historical knowledge

--------------------------------------------------------------------------------------GNU M4 Introduction:The GNU M4 is an implementation of a traditional UNIX macro processor. It is primarily compatible with SVR4, although it has some extensions (for example, a macro that handles more than 9 positional parameters). The GNU M4 also has built-in functions to conta

or Vim fans can use it to do the code jump The ability to find definitions and references is powerful enough for code reading. GNU Global has a strong cross-platform capability that can be used both in Linux and BSD systems and in Windows. GNU Global has the following features: Built-in 6 syntactic parser (definitions and references) C,C++,YACC,JAVA,PHP4 and assemblies Ctag

What is GNU? Reference from the official website (http://www.gnu.org/) Definition: GNU is a Unix-like operating system composed of free software. You can choose to install a Linux kernel-based GNU system completely composed of free software. The GNU project was founded in 1984 to develop a complete