Differences between Unix and Linux operating systems

In the computer age, a considerable number of people mistakenly believe that the Unix and Linux operating systems are the same. However, the opposite is true. Let's take a closer look.

What is Unix?

In the IT field, Unix, known as the operating system, was developed by AT&T in New Jersey, USA in 1969 (its trademark rights are currently owned by the International Open Standards Organization). Most operating systems were inspired by Unix, which was also inspired by the unfinished Multics system. Another version of Unix was Play 9 from Bell Labs.

Where is Unix used?

As an operating system, Unix is ​​mostly used on servers, workstations, and now also on personal computers. It plays a very important role in creating the Internet, computer network or client/server model.

Features of Unix system

• Support multi-tasking
• The operation is simpler than Multics
• All data is stored in plain text
• Tree storage using a single root file
• Ability to access multiple user accounts simultaneously

Composition of Unix operating system

a) A single-core operating system, responsible for low-level operations and operations initiated by the user. Communication between cores is performed through system calls. b) System tools c) Other applications

What is Linux?

This is an open source operating system based on the principles of Unix operating system. As open source means, it is a system that is freely downloadable. It can also customize the system by editing, adding and extending its source code. This is one of its biggest benefits, unlike other operating systems today (Windows, Mac OS X, etc.) that require payment. The Unix system was not the only template for creating new systems. Another important factor was the MINIX system. Unlike Linus, this version was used by its creator (Andrew Tanenbaum) for commercial systems.

Linux was developed in 1991 by Linus Torvalds as an operating system as a personal hobby. One of the main reasons why Linux takes cues from Unix is ​​because of its simplicity. The first official version of Linux (0.01) was released on September 17, 1991. Although the system was not perfect, Linus was very interested in it, and within a few days, Linus sent out some emails about Linux source code extensions and other ideas.

Features of Linux

The cornerstone of Linux is the Unix kernel, which is based on the fundamental features of Unix as well as the POSIX and separate UNIX specification standards. It seems that the official name of the operating system is taken from Linus, where the "x" at the end of the operating system name is related to Unix system.

The main function

• Run multiple tasks simultaneously (multitasking)
• A program can contain one or more processes (multipurpose systems), and each process may have one or more threads.
• Multi-user, so it can run multiple user programs.
• Personal accounts are protected by appropriate authorization.
• So the account accurately defines system control.

Penguin Tux The logo author is Larry Ewing, who chose this penguin as the mascot for his open source Linux operating system. Linux Torvalds Originally proposed the name of this new operating system as "Freax", which is a combination of "free" and "freak" x (UNIX system), rather than storing it The name given to the first version of the FTP server (Linux).

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