- Cobol is a business-oriented programming language developed in the 50s.
- Its current relevance is due to its use in critical systems in industries such as banking and insurance.
- Learning Cobol can open up job opportunities due to the ongoing demand for programmers.
- The history of Cobol shows its evolution and adaptation to technological changes over time.
In the ever-changing world of programming, one thing remains constant: the persistent presence and importance of the Cobol Programming Language. This language, first designed in the 50s, has stood the test of time and remains relevant today. But why is this language so important? How has it been able to stay in the game while other programming languages have come and gone?
What is Cobol Programming Language?
COBOL is the acronym for COmmon Business-Oriented Language, it is a programming language oriented to the business world. It was developed in the 50s by the CODASYL Committee with the idea of creating a high-level programming language that would be universally acceptable for business programming.
Why was Cobol developed?
The idea behind the creation of Cobol was to simplify the programming process, which would allow more people to participate in it. Originally, Cobol was created to be an easy-to-use and understand language, even for those who were not professional programmers.
History of Cobol Programming Language
Cobol has a rich and fascinating history. Initially developed for the US Department of Defense, its use has expanded to a wide variety of industries and applications. How did it all begin?
Origins of Cobol
In 1959, a group of computer scientists from industry and government came together to develop a universal programming language for business. The result was Cobol. Their goal was to provide a language that could be used on any computer, regardless of its manufacturer.
Cobol through the years
Despite its age, Cobol has stood the test of time and remains widely used in industry. This continued use has required Cobol to evolve in order to remain relevant. Updates and revisions have allowed Cobol to keep up with technological advancements and market demands.
Cobol in the Modern World
COBOL remains a cornerstone of the programming world . Despite technological advancements and the emergence of new programming languages, COBOL continues to be fundamental in many industries.
Where is Cobol used today?
COBOL is used in a variety of industries, including banking, insurance, and government. Much of the world's financial infrastructure is based on COBOL due to its robustness and reliability. You can read more about its relevance in the article on the best alternatives to COBOL.
Why is Cobol still relevant?
The legacy of COBOL and its ubiquity in mission-critical business systems guarantee its continued relevance. Many of the oldest systems in use today were originally written in COBOL and still function well, making it more cost-effective and less risky to continue using COBOL rather than rewriting these systems in a more modern language. Furthermore, Grace Hopper's story is intrinsically linked to the development of programming languages like COBOL, adding significant historical value.
Learning Cobol Programming Language
Although Cobol may not be as popular as some more modern programming languages, learning it can be an excellent decision. Here's why.
Why should I learn Cobol?
There is a constant demand for COBOL programmers due to the need to maintain and update legacy systems. Learning COBOL can open doors to job opportunities unavailable to those who only know more modern programming languages. For valuable resources on learning COBOL, you can check out the best COBOL web resources.
How can I learn Cobol?
Learning Cobol can be a challenge, but there are many resources available. There are textbooks, online courses, and training programs available for those who want to learn this venerable language.
Typical example of "Hello World" in Cobol
IDENTIFICATION DIVISION.
PROGRAM-ID. HOLA-MUNDO.
AUTHOR. Tu Nombre.
DATE-WRITTEN. 4 DE JULIO DE 2023.
DATE-COMPILED.
SECURITY.
ENVIRONMENT DIVISION.
CONFIGURATION SECTION.
SOURCE-COMPUTER. COBOL-85.
OBJECT-COMPUTER. COBOL-85.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 MENSAJE PIC X(20) VALUE '¡Hola, Mundo!'.
PROCEDURE DIVISION.
INICIO.
DISPLAY 'Mensaje: ' MENSAJE.
STOP RUN.
Step-by-step code explanation:
- The line
IDENTIFICATION DIVISION.indicates that the program identification section begins. PROGRAM-ID. HOLA-MUNDO.define the program name as “HELLO-WORLD”. You can change it if you want.AUTHOR. Tu Nombre.allows you to add your name as the author of the program.DATE-WRITTEN. 4 DE JULIO DE 2023.provides the date the program was written.- The lines
DATE-COMPILED.ySECURITY.are blank in this case, but may include additional information as needed. - The section
ENVIRONMENT DIVISION.defines the configuration of the program execution environment. CONFIGURATION SECTION.Specifies the system-specific configuration. In this case, COBOL-85 is used.- The lines
SOURCE-COMPUTER.yOBJECT-COMPUTER.specify the configuration of the source and destination computers respectively. - The section
DATA DIVISION.defines the data structure used by the program. - The section
WORKING-STORAGE SECTION.is where the working variables are defined. In this case, the variable is definedMENSAJEas a character string of length 20 and is assigned the value 'Hello, World!'. - The section
PROCEDURE DIVISION.contains the program logic. INICIO.is a label that marks the starting point of the program.DISPLAY 'Mensaje: ' MENSAJE.displays on the screen the message “Message:” followed by the contents of the variableMENSAJE.STOP RUN.ends the execution of the program.
This program simply displays the message “Message: Hello, World!” on the screen using the DISPLAY statement and then ends the execution of the program. You can customize the message by changing the value of the variable MENSAJE according to your needs.
FAQ
1. Is it difficult to learn Cobol?
Not necessarily. Cobol was designed to be an easy-to-understand and easy-to-use language. However, like any programming language, it takes time and practice to master.
2. Is Cobol obsolete?
Although it is an old programming language, Cobol is not obsolete. It is still widely used in many industries and there is a constant demand for Cobol programmers.
3. Can I use Cobol to develop modern applications?
Yes, you can. While it's not common to use COBOL to develop new applications, it is possible. Furthermore, many legacy systems written in COBOL require maintenance and updates, providing ample opportunities for COBOL programmers. If you're interested in the evolution of the language over time, I recommend reading about the history of computers and their development.
4. Is Cobol safe?
Cobol is known for its robustness and reliability, making it a safe programming language for many uses, especially in the financial industry and government.
5. What makes Cobol unique?
Cobol is unique in several ways. It was one of the first high-level programming languages and was specifically designed to be easy to use and understand. Furthermore, its widespread use in business-critical systems has ensured its relevance over the years.
6. Will Cobol still be relevant in the future?
COBOL is likely to remain relevant for the foreseeable future due to its widespread use in legacy systems that are critical to many industries. You can consult the history of computers and their generations to better understand the context in which this language has developed.
Conclusion
Although the Cobol programming language is old, it is still relevant and in use today. Despite the emergence of many modern programming languages, Cobol has stood the test of time and remains a mainstay in the programming industry. Whether you are considering learning Cobol or simply interested in the history of programming, Cobol is certainly a language that deserves respect and appreciation.
