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what is linux?
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Linux? Hard not to hear about today. Unless they have confined in an anti-nuclear bunker cut all ties with the world, you've probably encountered this word somewhere on the Internet or in a conversation between friends.
This is not surprising: Linux is everywhere. Without Linux, many websites and programs would not exist today.
However, it has WHAT Linux?
This is the question that this first chapter will answer, do not panic.
We will not install anything yet, just find out what it is and how we got here ... because it has crucial! So you can sit comfortably and start from the beginning. ;-)
This is not surprising: Linux is everywhere. Without Linux, many websites and programs would not exist today.
However, it has WHAT Linux?
This is the question that this first chapter will answer, do not panic.
We will not install anything yet, just find out what it is and how we got here ... because it has crucial! So you can sit comfortably and start from the beginning. ;-)
- An operating system
Today, almost all the PC (if not more!) Is "supplied with Windows." However, do you know what that means?
Yes, I know! That means we see marked "Windows" when starting the computer! No ... this is not it?.
Yes, come on, say it is a good start.
Indeed, one of the first things you see when you turn on your computer
screen like the following figure.
This screen may vary depending on the version of Windows, but the idea is there, and you just mention the keyword: Windows launches at startup of the computer.
What for? Because it depends on the material that is made to your computer. This is indeed the motherboard that displays the boot screen. The motherboard is the core component of any computer, and it is what works the processor, hard drives, CD-ROMs...
It was, therefore, in the order:
It is only after Windows is loaded you can finally use your programs: games, Internet, software design, mail ...
This "super software" is called the operating system. Windows is operating system.
If you prefer patterns (I suggest you get used to it because I'll often use the following :)), refer to the following figure
Do not worry, I have not forgotten! Now that you know a little better what an operating system (OS), I can unveil the truth: Linux is an operating system, just like Windows or Mac OS (for those who have a Mac).
It is renowned among others for his safety and his more frequent updates that Windows Update, but all this, you'll discover little by little.
What to remember at the moment is the basic principle of Linux that you control your computer. It is, therefore, not by chance that this course is called "Take control with Linux! ".
You will finally know what you are doing and thus better understand the functioning of the computer!
Nothing is further from the truth: you may well have two OS (or more!) Installed on your computer. In this case, just after the boot screen, you will have a program called Boot Loader that will are e displayed for you to make your choice.
The boot loader discussed here has the sweet name of GRUB. It will ask you to choose between Windows and Linux every time you start the computer.
GRUB will launch the default OS if you do not make a choice before a few seconds. It is you who choose the default OS, of course; you can not impose anything. The diagram to start the computer so changes a little, as shown in the following figure..png "what is linux?")
As you can already see from this diagram, when you are on Linux, you use programs made for Linux and not Windows programs. Indeed, Windows programs will not run under Linux and vice versa.
Moreover, some do not even exist in Windows!
You will discover new features and eventually save time while using your computer more efficiently.
Yes, I know! That means we see marked "Windows" when starting the computer! No ... this is not it?.
Yes, come on, say it is a good start.
Indeed, one of the first things you see when you turn on your computer
screen like the following figure.
This screen may vary depending on the version of Windows, but the idea is there, and you just mention the keyword: Windows launches at startup of the computer.
The boot: booting the computer
In fact, Windows starts almost first. If you look closely, you can see that this is something else that appears on the screen during the first few seconds. This "something else" is called the boot screen. I will not let you capture screen as Windows boot screen as this varies great computers.What for? Because it depends on the material that is made to your computer. This is indeed the motherboard that displays the boot screen. The motherboard is the core component of any computer, and it is what works the processor, hard drives, CD-ROMs...
It was, therefore, in the order:
- boot screen;
- Windows are startup.
It is only after Windows is loaded you can finally use your programs: games, Internet, software design, mail ...
However, why is it that Windows loads first? Why could we not run games from the start of the computer?
Because ... your computer needs a kind of "great software" which is the conductor. It is he who must manage the memory of your computer, have distributed among all programs. It is a link between your hardware (graphics card, memory, printer) and software. Moreover, it is much work, believe me! ;-)This "super software" is called the operating system. Windows is operating system.
An operating system which had abbreviated as "OS." I often will use the abbreviation thereafter, so do not be surprised!
If we summarize the order of things, in the end so we have this:- boot screen;
- starting the operating system (Windows);
- launch programs (games, Internet, email ...).
If you prefer patterns (I suggest you get used to it because I'll often use the following :)), refer to the following figure
Linux is operating system
Do not worry, I have not forgotten! Now that you know a little better what an operating system (OS), I can unveil the truth: Linux is an operating system, just like Windows or Mac OS (for those who have a Mac).
It is renowned among others for his safety and his more frequent updates that Windows Update, but all this, you'll discover little by little.
What to remember at the moment is the basic principle of Linux that you control your computer. It is, therefore, not by chance that this course is called "Take control with Linux! ".
You will finally know what you are doing and thus better understand the functioning of the computer!
Can we do mutually two OS on his computer? I did not want to delete Windows and replace it with Linux!
Many people believe that he must make a choice: Linux or Windows.Nothing is further from the truth: you may well have two OS (or more!) Installed on your computer. In this case, just after the boot screen, you will have a program called Boot Loader that will are e displayed for you to make your choice.
The boot loader discussed here has the sweet name of GRUB. It will ask you to choose between Windows and Linux every time you start the computer.
GRUB will launch the default OS if you do not make a choice before a few seconds. It is you who choose the default OS, of course; you can not impose anything. The diagram to start the computer so changes a little, as shown in the following figure.
.png "what is linux?")
As you can already see from this diagram, when you are on Linux, you use programs made for Linux and not Windows programs. Indeed, Windows programs will not run under Linux and vice versa.
Know when it is even possible to run Windows programs in Linux using a program called wine. However, even if it works well most of the time, it is more favored to use programs made for Linux once you use this OS as they rotate faster.
You should already tell you: "Ouch, if I can not use Windows programs I am used to, I'm not going out." Yet it does not take long to fit (two or three days are enough, even a night if you're curious!) And Linux programs have huge advantages:
they are free and you will see that Linux, almost all programs are free;
software is often updated and always free! You will frequently see your favorite software evolve and will not have to pay three hundred euros to update you!
Some of these programs are better than those found in Windows.Moreover, some do not even exist in Windows!
You will discover new features and eventually save time while using your computer more efficiently.
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