When the first computers were developed, there were very few tools to manage them. At that time, algorithms were developed to perform certain tasks, but without the ability to automate them as such.
At that time, it became necessary to combine different algorithms to create more advanced tools for managing the most powerful functions of the computers of the time. They are known as computer programs and their appearance has helped determine the way we deal with computers today.
With the advent of this technology, the growth of computer technology has accelerated, requiring the development of more powerful hardware that can execute programs faster and more efficiently. In this article you will learn everything you need to know about them.
What is a computer program and what are these digital tools used for?
A computer program is nothing more than a sequence of instructions, written in mandatory or declarative language, with the ability to control and manage the resources of a computer or intelligent device.
The programs are an integral part of the computer’s operating software, because they not only enable various functions, but also provide a direct connection that allows the user to operate the devices freely.
Computer programs are written in a matrix or source code, i.e. a sequence of statements written in a programming language, which are nothing more than compelling or declarative expressions that specify any action the computer can perform with them.
The source code of the program is written by programmers who are professionals with many years of experience in writing all types of programs and who have an excellent command of some of the languages needed to create the program.
What are the types of computer programs and how are they characterized?
Computer programming is a very complicated world, but its layout is much simpler than you think. To date, there are two types of computer programs, classified according to their type.
These are the most basic programs because they create an ideal ecosystem so that the user can use all the functions of the computer and also run certain applications. They are also known as operating systems.
These are ordinary programs with which we communicate on our computer, they are the ones that enable us to have direct control over the equipment’s resources. From our web browser to the word processor and our favorite video game. All these programs running in the operating system fall under the classification of the application software.
What are the most important elements of the software?
Since computer software is a very complex file, there are several important elements involved in the operation of one of them.
That’s how they are:
Before determining the functionality of a program, it is important to choose a programming language. Indeed, this decision will largely determine the complexity and strength of our program.
This is due to the fact that programming languages have their own degree of complexity and, above all, their own principles, each of which has certain characteristics that make them more or less powerful than the others. HTML5, for example, is a very popular language. It is mostly used for website development, but it is not very practical for making more complex programmes, so in this type of project it is usually used in addition to more powerful languages.
The source code is a file that contains all the code that indicates the structure of the program, since it contains, line by line, all the commands that the hardware must execute in order to function perfectly. This, in turn, is written in the programming language where the developer stopped.
An executable file is a binary file that is directly related to the matrix code used by the user and the computer to run any computer program. In this sense, they can be divided into two types: portable and non-portable.
Portable executables are those that can run without restrictions on different platforms, such as Java. Non-portals are those that can only be launched on a specific platform.
A compiler is a program used to translate program instructions written in one programming language into another language. This second language usually has a machine type or byte code.
As you know, computers understand only one language, binary code. Programming languages do not fall into this category and in general they help us people to program. But then you need an element that translates these instructions into binary code, which is a compilation function.
Object files are the result of the creation of an executable file by the compiler. It contains all the lines of code for each of the functions that make the software work. It is consulted by the team when the user indicates the execution of one of these specific functions.
What is the life cycle of the software and how does it work?
The software lifecycle is a process that includes all the steps a program goes through, from the conception of an idea to its subsequent launch on the market. A number of measures are usually taken to ensure that the programme runs smoothly.
The life cycle of a computer program is not a recipe for making it, but rather a guide to the most important aspects to take into account when designing and developing a computer program. However, there is no way to do this, and there are different schools of thought or different paradigms to do this.
In this sense, the most important models:
- Agile model : Flexible software development is a method that minimizes processes as much as possible and does not follow an orderly line to execute them, but executes them according to the changing needs of the program.
- The waterfall: It was the first and most widely used. It is a model that makes an orderly step-by-step plan of all program development processes that need to be completed in perfect order, as it is impossible to start such a process without executing the previous one.
- A wormhole: This model is very similar to the previous one, with the difference that it organises the phases into work cycles with clearly defined objectives. At the end of a cycle, another cycle is automatically started, resulting in an orderly sequence with a low number of errors.
- Object oriented : This is a much more modular model that allows you to split all phases of program development into a series of mini-projects, making it easier to achieve your goals and reduce the number of errors.
- The n-fix code – this model is more extreme than the others and does not really correspond to a certain order. In this way, you start writing code as soon as the intention of the software is clear, and then you enter the testing phase, in which any errors are immediately corrected.
- Prototypes: Finally, there is a model based on the development of prototypes, which will be improved and perfected until the final and clean version of the program to be created.
If you want to know more about the lifecycle of the program, you can read the article we wrote about it.
List of the most important and widely used computer programs in the last decade
Now that you know everything you need to know about computer programs, it’s time to refresh your memory by talking about the most important programs that have been developed in recent decades:
Windows is a software system or operating system developed by Microsoft. Since its introduction at the end of the 20th century. In the 19th century it was upgraded to a very robust version in today’s Windows 10. But in the course of history, you will also find other versions that were very successful at the time, such as Windows XP or Windows 7.
It is an application software for processing bitmap images. Nevertheless, as we explicitly call it, the developers, ADOBE, have the most representative and powerful programs in the industry. Programs such as Illustrator, Premiere Pro or After Effects are today real pillars of the audiovisual industry.
Microsoft Word Office
Another Microsoft gem that would completely change the way we’ve seen computers in the past. Word is a text machine with which you can create all kinds of documents in digital format. The office suite to which it belongs also includes other office programs such as Excel, PowerPoint and others.
Solitaire – one of the most legendary computer games. It was introduced in the 1990s under Windows and has always been a popular user. We know there are a million better games than this, but in terms of historical significance, none of them can match Solitaire, so we decided to give them all the credit.
One of the most important internet browsers in history. Although he’s been through a disaster for the past ten years, no one can deprive him of his dance, because he was the fastest of all then, especially in versions like Windows XP. At the moment he stands behind Chrome or Mozilla, but historically he will always be above them.
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