You'll need to have either a CD or USB drive to save the OS. Getting a copy is simple - you can visit the Ubuntu Web site and download the OS directly. What that means for you is that Ubuntu is a free operating system you can install on a computer. Let's take a look at what Ubuntu is and how it relates to Linux. You could also build your own operating system using the Linux kernel - its foundation - as the basis for your OS. The same is true for features - if you think of a cool function that you believe Linux should support, you can build it into the source code. If a user sees a bug or vulnerability, he or she can whip up some code to fix the problem and contribute to the next version of Linux. The benefit of this approach is that many Linux users are also the developers for the OS. You'll have to understand programming languages but there's no level of secrecy with what makes Linux tick.
Machines can't understand source code, which is why developers feed the source code through a compiler.īecause Linux includes the source code for the operating system, you can see how the OS works just by downloading it. There are many different coding languages but they all share a common trait: It's relatively easy for humans to understand it (assuming that human has studied the language).
Developers write software in source code. Unlike compiled OSes, an open-source operating system includes the source code for the OS. That means it's not easy for the average user to see how Microsoft or Apple put their operating systems together. But compiled code is difficult for humans to understand - it's extremely complex. That covers what an operating system is, but what about open source? Operating systems like Windows and Mac OS X are compiled. Operating systems make it easy for program developers to write software - without an OS, the programmer would have to create software to work directly from the hardware itself.
When you execute a program, the OS acts like a supervisor and makes sure the program has the processing power, memory and any other resources it might need to function. It's the OS's job to monitor computer resources and allocate those resources to programs that need them.
An operating system is a layer of software on a computer that acts as a foundation for computer programs. To really understand what that means, we need to define some terms. Linux is an open-source operating system. Their OS of choice is Linux and they back a very different philosophy than the one followed by the big companies. But there's a small group of rebels out there who know better. Numerous ad campaigns give the impression that these are the only two choices out there for anyone looking to buy a computer. In that war, the two superpowers are Microsoft and Apple. There's a kind of war going on and we're all caught in the middle.
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