Operating Systems

Operating Systems

1. What is an operating system?

   • the low-level software that supports a computer's basic functions, such as scheduling tasks and controlling peripherals.

2. What is the purpose of an operating system?

   • An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function.

3. What are the most common operating systems in use today?

4. What functions do operating systems have?

   • Provides a user interface, booting the computer, file management, managing the hardware and software, performs basic computer tasks and handles system resources such as computer's memory and sharing of the central processing unit (CPU) time by various applications or peripheral devices.

5. What is a GUI?

   • In computing, a graphical user interface is a type of interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation, as opposed to text-based interfaces, typed command labels or text navigation.

6. Advantages to a GUI?

   • - it can be user-friendly and speed up the user's work, it can be more attractive for non-technical people, in general it looks more professional.

7. Disadvantages of a GUI?

   • when it is not properly built, it can be very difficult to work with, it generally requires more memory resources than a non-graphical one, it might require the installation of additional software, e.g., the "runtime environment" in the case of java, depending on the programmer it might require more time to be implemented.

8. What is a CLI?

   • The CLI was the primary means of interaction with most computer systems until the introduction of the video display terminal

9. Advantages of a CLI?

   • Control every aspect of your computer, it is fast, you can do things at different times, such as setting a time for a download script. You could choose to download a new program when you are sleeping, everything in one place, good for speed if you have a slow computer, less graphics means less RAM used up while you perform tasks, you can use scripting language and even other programming languages, such as C (depending on which command line you use.)

10. Disadvantages of a CLI?

    • Lots to learn, not GUI (Graphic User Interface), many of the advantages are mainly for Linux, not so much for Windows.

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