operating system

operating system

1. what is an operating system? An operating system is a system program that controls and organises the general operation of the computer.

   • • 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.
       • file management? A file manager or file browser is a computer program that provides a user interface to manage files and folders.
         • booting the computer? Booting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs when it is switched on. Every computer has a boot sequence.
       • what are the most common operating system in use today? It's not Windows, Unix or Linux, but ITRON, a Japanese real-time kernel for small-scale embedded systems. ITRON runs on mobile phones, digital cameras, CD players and countless other electronic devices.
   • managing the hardware and software?
     • list as many of the function of an operating system?◾Booting the computer. ◾Performs basic computer tasks managing the various peripheral devices mouse, keyboard. ◾Provides a user interface, e.g. command line, graphical user interface (GUI)
       • 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.
         • what are the advantages and dismantles?Advantages (only when it is properly built) - 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 (but this does not mean it is always the best solution). Disadvantages - 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.