1.7 software system

1.7 software system

1. windows (7,8,10)

   • Mac
     • Android
       • Raspbain
         • Linux / Unoix
           • IOS

2. System Software

   • System software is a type of computer program that is designed to run a computer's hardware and application programs. If we think of the computer system as a layered model, the system software is the interface between the hardware and user applications. ... The OS manages all the other programs in a computer.

3. Time Slice

   • The scheduler is run once every time slice to choose the next process to run. If the time slice is too short then the scheduler will consume too much processing time but if it is too long then processes may not be able to respond to external events quickly enough.

4. Multitasking

   • Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time. The operating system is able to keep track of where you are in these tasks and go from one to the other without losing information.

5. Virtual Mashine

   • A virtual machine is a software computer that, like a physical computer, runs an operating system and applications. The virtual machine is comprised of a set of specification and configuration files and is backed by the physical resources of a host.

6. Utility Programs

   • a program designed for general support of the processes of a computer; "a computer system provides utility programs to perform the tasks needed by most users"

7. File Management

   • A file management system is a type of software that manages data files in a computer system. It has limited capabilities and is designed to manage individual or group files, such as special office documents and records. It may display report details, like owner, creation date, state of completion and similar features useful in an office environment. A file management system is also known as a file manager.

8. Device Drivers

   • A program that controls a device. Every device, whether it be a printer, disk drive, or keyboard, must have a driver program. Many drivers, such as the keyboard driver, come with the operating system. For other devices, you may need to load a new driver when you connect the device to your computer.

9. Operating System (OS)

   • The operating system (OS) is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs and applications. ... For large systems, the operating system has even greater responsibilities and powers.

10. User Interface

    • The junction between a user and a computer program. A command-driven interface is one in which you enter commands.
      • An interface is a set of commands or menus through which a user communicates with a program.
        • A command-driven interface is one in which you enter commands.