What is an operating system?
An operating system is a kind of software that runs on our computers.It allows us to communicate with the computer without knowing computer’s language. It manages the computer’s memory and processes, as well as all of it’s softwares and hardware.
Without and operating system, your computer is useless.
What is the work of and Operating System ?
As I said above your computer’s operating system manages all the software and hardware on computer. Most of the time, there are different computer programs running at the same time, and they all need to access your computer’s CPU (Central Processing Unit), Memory (RAM) and Storage (ROM). The operating system coordinates all of this to make sure that each program gets the amount of resource they need to work properly.
What are the types of Operating Systems ?
Operating Systems usually comes pre-loaded or pre-installed on any computer that you buy. Most people use the operating system that comes with their computer, but it is possible to upgrade or even change the operating system. The three most common operating systems for personal computers are Microsoft Windows, Linux and macOS.
Modern operating systems* use a Graphical User Interface or GUI it is pronounced as gooey. A GUI lets you use your mouse to click icons, buttons and menus and everything is clearly displayed on the screen using a combination of Graphics and Text.
Each operating system’s GUI has a different look and a different feel, so if you switch to a different operating system it may seem unfamiliar at first. However, modern operating systems are designed to be easy to use , and most of the basic principles are the same.
Microsoft Windows
Microsoft created the Windows operating system in the mid-1980s. There have been many different versions of Windows, but the most recent ones are Windows 10 (released in 2015), Windows 8 (2012), Windows 7 (2009), and Windows Vista (2007). Windows comes pre-loaded on most new PCs, which helps to make it the most popular operating system in the world.
macOS
macOS (previously called OS X) is a line of operating systems created by Apple. It comes preloaded on all Macintosh computers, or Macs. Some of the specific versions include Mojave (released in 2018), High Sierra (2017), and Sierra (2016).
GNU Linux / Unix
Linux is a family of open-source operating systems, which means they can be modified and distributed by anyone around the world. This is different from proprietary software like Windows, which can only be modified by the company that owns it. The advantages of Linux are that it is free, and there are many different distributions—or versions—you can choose from. However, most servers run Linux because it’s relatively easy to customise.
If you are a beginner who want to learn linux then you should try the linux distributions that are made for newbies. Ubuntu, Linux Mint, Manjaro Linux and many more…
What operating systems do mobile devices use ?
The operating systems we’ve been talking about so far were designed to run on desktop and laptop computers. Mobile devices such as phones, tablet computers, and MP3 players are different from desktop and laptop computers, so they run operating systems that are designed specifically for mobile devices. Examples of mobile operating systems include Apple iOS and Google Android . In the screenshot below, you can see iOS running on an iPad.
Operating systems for mobile devices generally aren’t as fully featured as those made for desktop and laptop computers, and they aren’t able to run all of the same software. However, you can still do a lot of things with them, like watch movies, browse the Web, manage your calendar, and play games.
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