A programming language is a way to tell a computer or device what to do. All programming languages have vocabulary, a special set of keywords, and a special syntax to assemble and organize computer instructions. Modern technology requires various software applications, each relying on programming languages. These languages offer a structured manner of expressing how we talk to our computer, translating how humans think in machine-understandable instructions. We need to program software packages that power different systems and devices, and this software package is what we call software. Examples include use in developing operating systems and web browsers.
Moreover, creating mobile or desktop apps with functionality across platforms is also important. Programming languages are also used to design video games that provide interactive entertainment or general programs that may aid in everyday computing tasks. Programming languages are used to create business software for business-related operations and data in the business world. Finally, embedded systems — specialized computing systems within devices such as smart home gadgets and medical equipment — in which they are also used. All in all, programming languages allow the development of very complex software solutions that let us use the technology we need now.
High-Level Programming Languages
Human language is less complicated than low-level languages and is also significantly more complex than high-level languages. They’re designed for human-readable and human use by the programmer. Low-level languages require physical knowledge of computer architectures to write code, while high-level languages avoid all those and abstract them. Let’s go through some of the important and widely used ones:
Compiled Languages
A compiler translates the compiled language verses into machine code before execution, making the result very efficient and fast. Compilers are important for performance-critical applications such as operating systems and high-performance software.
Example: C, C++, Java, C#
Interpreted Languages
The interpreter executes interpreted languages line by line and can be flexible regarding the platform. Web development and scripting are used widely, and there is a lot of rapid development and testing.
Example: Python, Ruby, JavaScript
Object-Oriented Languages
Object-oriented programming (OOP) allows software developers to program. It breaks software writing into two parts: data and methods, combining the two into a single structure called an object. With large-scale software projects, this approach encourages code reusability and code maintainability.
Example: Java, C++, Python, Ruby
Functional Programming Languages.
Functional languages are based on computation, seeing functions as mathematical functions to be evaluated, first-class functions, and immutability. They are becoming popular for data processing and concurrent programming.
Example: Haskell, Scala, F#
Scripting Languages
Scripting languages are intended to automate tasks and control applications. I use them mainly for web development, where they make the pages more interactive and user-friendly.
Example: PHP, Python, JavaScript
Logic-Based Languages
Formal logic serves as the base for logic programming languages, in which problem-domain facts can be stated, and rules to transform one fact into another are expressed. It is commonly used in Artificial Intelligence, Natural Language Processing, and Expert systems.
Example: Prolog, CLIPS, ALF
Markup Languages
Markup languages usually describe data structure and presentation rather than performing logical operations on the data. You need them for web development and document formatting.
Example: HTML, XML, JSON
Low-Level Programming languages
Unlike high-level languages, low-level languages are based on a machine’s hardware and require detailed computer architecture knowledge. They are less abstract than high-level languages and, therefore, harder for humans to read and write, but they give more control over the hardware’s operation.
Machine-level languages.
Low-level languages are advantageous over high-level ones because they provide direct control over hardware and system resources. System programming and embedded systems, where performance and efficiency are of concern, rely critically on them.
Example: Assembly, ARM, x86
Integration is needed because programming languages have many options for different business needs. When choosing the right language for integration, there are two main things to consider:
- Complex Systems: If you’re a business, chances are you have a messy digital setup with different databases, applications, and hardware all working together—whether on the ground or in the cloud.
- Unique Company Needs: The best integration solution will vary from company to company. Small, lean companies may have different needs than big, bureaucratic companies with far-flung businesses.
Traditional tools such as Enterprise Service Buses (ESBs) can sometimes be handy when a business has to manage multiple systems from one place. An ESB could use a certain language, such as XML, for configuration, which can then be used to connect different systems.
Fortunately, modern programming languages provide features for cases when older technologies, such as ESBs, can be replaced. Here’s why:
- User-Friendly: They tend to be easier to use.
- Safe and Reliable: These may come with built-in safety features.
- Flexible and Agile: Quickly changing needs don’t frighten them at all.
In other words, web programming languages are important for improving integration. In this case, the Go language is good with Kubernetes for creating microservices. ESBs can be used when the microservices are smaller, more focused services that can communicate and, depending on products, rely on ESBs. A good example of this is Ballerina, a language developed by WSO2. The underlying intent is to help developers build out cloud-based applications, which sometimes fill the role of ESB technology.