What is Linux?
To learn Linux you should know what exactly Linux is? It is an operating system just like other operating systems. As you know Microsoft has windows and apple has MAC. There are other companies like Sun microsystems have solaries.
It is an operating system that sits in the middle of your hardware and users. The users are the one who runs the applications. So, it’s like a bridge that takes the commands from users and translates them to hardware.
Imagine you have a computer and without an operating system, your computer is considered a dumb terminal. It doesn’t do anything. So, how does it work?
We have a terminal in Linux OS which is a piece of software. To install an operating system on your personal computer you can do this by two methods. The first method is to install a CD or DVD and the second method is by using a USB drive. The CD or DVD has the operating system in it and you boot your system after installing the OS. The OS could be Linux, Windows, or whatever OS you have installed.
UNIX vs. Linux
Let’s take a look at the comparison between UNIX and Linux operating systems and before we talk about the differences between them. We should know what UNIX is?
- UNIX is an operating system just like Linux and it was developed for multi-users and multi-tasking in the mid of 1970 in the Bell labs by ATT, GE, and Massachusetts institute of technology.
- UNIX was an operating system but it doesn’t allow multi-users or multi-tasking.
- UNIX is mostly used by Sun as Solaries, Sun is a company and their operating system is Solaries.
- There are other operating systems that also use UNIX is HP-UX, AIX etc.
- UNIX is comparatively supports very fewer file systems. There are fewer file systems that are supported by UNIX.
- It was born in 1991 by Linus Torvalds. He was a French student.
- It is mostly free. The free means you could install the Linux Operating system on any of your computer hardware.
- It is open-source and this means that it’s code that was derived from UNIX is actually open to the public, to the community. So, they can go and make changes to the code and make the operating system the way they wanted it to work.
- There are free distributions in Linux that are free like Red Hat and you have to pay for a subscription.
- It is mostly used by developer communities or by companies like (Red Hat, CentOS, Debian), etc. There are so many of them and you can search Linux operating systems on Google.
Linux vs., Windows
The reason we are talking about the comparison of Linux and Windows is that when you need to know a lot about a certain technology. It is good to compare one thing with another. Imagine you need to compare a car with another car. For example, if you are buying Mercedes, then you should know a few differences between Mercedes and BMW. So, the comparison will allow you to make the right decision. You would know the features that you will be getting with your new car. So, that’s why we are comparing Linux with windows.
You will know exactly what the difference is? You can also answer your interview questions about OS and Windows.