What is an operating system?

Initially, computers did not have operating systems; instead, batch processing was used. Operating systems began to emerge in the 1990s, with the release of Windows 95 being a key milestone.

He operating system It refers to the software that coordinates all the services and applications used by the user, that is, those programs that allow the regulation of the most essential aspects of the system.

These are the most commonly used operating systems:

• Windows; It is one of the most popular and at first it was a set of graphical operating systems, to provide a visual representation of support and other software tools.
• MS-DOS; Microsoft Disk System, which was one of the most common systems for IBM personal computers during the 80s and 90s and had internal and external commands, displayed sequentially on a dark screen.
•  Linux UNIX; It was created with the idea of being a portable, multitasking, and multi-user system, which actually forms a family of similar operating systems that have been marketed through the Linux kernel.
• MacOS is the operating system of Apple's Macintosh computers and is also known as OSX or Mac OSX.
• Android; It is the Linux-based system that operates on all types of devices and was developed by Android Inc. and later bought by Google.
• Ubuntu; It is a free and open-source system, so anyone can modify it without violating copyright.

The operating system (OS) is the basic protocol for the computer's operation, coordinating all other functions such as communication, processing, and user interface. It consists of desktop environments, window managers, and graphical interfaces, which are responsible for graphically representing all running processes to the user.

What functions does it have?

Besides knowing what a operating system We need to know what it's for, such as allowing other programs to use it for support to function correctly, keeping in mind that they are the key piece of software in the process chain, because they establish the conditions for everything to work; the method of communication with the user and other systems, the additional apps, the resource management…

It consists of three essential parts: The file system, command interpretation, and the kernel.

• The file system refers to the record of files in which they achieve a tree structure;
• Command interpretation, which allows the user's commands to be communicated in a language that the hardware understands.
• The Kernel; which allows communication, data input and output, memory, and process management.

A operating system It is capable of managing random access memory and applications, allocating the necessary resources, addressing data inputs and outputs, managing the CPU through a scheduling algorithm, directing usage authorizations, managing files, etc.