Free Computer Programming Tutorials & Courses in PDF

We all rely heavily on various software products that programmers meticulously develop in the modern world. What is computer programming, though?

In this tutorial, I will define programming and provide examples of the various types of programmers. I will also provide a list of courses you can take to begin your coding education.

What is computer programming? 

Programming is a computer program consisting of executable code that performs specific tasks on a computer. Programmers have written this code.

Programming is the act of providing machines with a set of instructions describing how a program should be executed. Programmers will spend their careers learning different programming languages and tools to help them make good computer programs.

Programmers will write source code using a code editor or integrated development environment (IDE). This is a compilation of code written in a programming language that other programmers can read.

In order for computers to read and run a program, the source code must be converted into machine language.

Compiling is the process of converting source code into machine language.

C and C++ are examples of compiled programming languages.

Other languages exist that do not employ compilers. These languages will instead utilize an interpreter to read and execute the code.

JavaScript and PHP would be examples of interpretive programming languages.

After the code has been executed, the computer program can then run. 

Computer programs include word processors, database management systems, video games, and websites.

These computer programs let us use phones, websites, and computers, as well as other software devices and services.

A Brief History of Programming 

Many historians believe that in the mid-19th century, Ada Lovelace wrote the first computer program and had it published. She was a mathematician who translated the Analytical Engine writings of Luigi Federico Menabrea.

This translation included Ada's detailed notes and a way to figure out Bernoulli numbers for the Analytical Engine.

Alonzo Church's math work and the Turing machine created the first computer codes.

The development of the earliest programming languages followed the creation of computers in the 1920s. Over the next 100 years, machines and technology kept improving, and so did the number of programming languages.

Languages for programming

Existing programming languages number in the hundreds. Developers will consider the application's requirements before deciding which programming languages to employ.

A few popular programming languages are listed below.

Python, JavaScript, C++, Java, C#, Ruby, and PHP

Some languages are mainly used for one kind of development, while others can be used for more than one thing.

JavaScript is primarily utilized for web development and is typically the first programming language that novice web developers learn. 

JavaScript can also be used to develop mobile applications and video games.

Python can be used in many different areas, such as data analysis, machine learning, and building websites. 

Programming languages are classified into numerous categories. Listed below are some of the categories.

Machine language is a low-level language composed of 0s and 1s (binary). The ability for the computer to execute the code comes from compiling high-level languages into machine code. 

A low-level programming language that is compiled by an assembler. Assemblers convert human-written code into machine code.

Before a program is executed on a computer, procedural programming languages follow a series of procedures. (including Go and Julia)

Scripting languages typically do not require compilation but are instead interpreted. The code will be read and executed by an interpreter instead of compiled into machine code. (including JavaScript and PHP)

Functional languages: this is consistent with the concept of constructing complex programs by combining smaller functions. (including Haskell and Scala)

Object-oriented programming languages support the concept of constructing programs around collections of objects. (including Java and Python)

We should have covered numerous additional software paradigms and programming languages in this tutorial. However, this should be an excellent introduction to the various programming languages available.

Different types of programming

There are numerous types of programming jobs from which to choose. This tutorial will only address a few topics.

Web developer 

These programmers develop applications for the internet. They will utilize languages such as HTML, CSS, JavaScript, PHP, and Python, among others.

Mobile Developer 

These programmers create applications for mobile devices. There will be React Native, Swift, Flutter, Java, and Kotlin as programming languages.

Game Development 

These programmers will create custom games for mobile devices, desktop computers, and game consoles. Included among the programming languages are C++, C#, and Lua.

Skills programmers should have

A professional programmer will have numerous responsibilities regarding the creation of computer programs.

Here are some of the essential programming skills.

• Writing efficient and clean code.
• Problem-solving 
• Examining and correcting coding errors ("bugs"). 
• Excellent communication and listening abilities, capacity for adequate teamwork, Patience, and perseverance 

A programmer must take the client's requirements and develop a robust, functional application. Developers will devote much time to researching, constructing, modifying, and testing their code.

After the application is released, developers will devote time to product maintenance and enhancement.

Conclusion

Programming computers can be an intellectually and financially rewarding career. Programmers must be eager to learn new concepts and solve complex problems.

There are numerous areas of programming to explore, including Web, mobile, game development, and systems engineering. Specific fields will necessitate formal education, whereas others will be open to self-taught programmers.