Operating Systems

Operating Systems

1. Mulltitasking

   • Multitasking is where the operating system is doing multiple things at the same

2. User interface

   • The user interface is how the user will interact with the computer, for example it could be a graphical user interface like windows or a command line based interface like raspbian.
     • A graphical user interface has things like icons a pointer and menus
     • A command line base just has a line to indicate where you are typing and the text you've previously typed up

3. Memory management

   • The OS keeps memory between different applications that are open at the same time

4. Drivers

   • Drivers are pieces of software that controls the hardware for example you have to install the drivers for a graphics card for it to work, same as your mouse and keyboard

5. peripherals management

   • Peripherals are pieces of hardware that are not directly linked to the CPU like the keyboard and mouse
     • These devices are essential for a computer to input output and store data. These divices need to talk with the rest if the system.
       • In windows you can access Windows Device Management

6. File mangement

   • The OS needs to know where everything is being stored like on the SSD or on the hard drive
   • An array is just a set of indexed numbers and when the program is closed all data is lost so if it needs to be kept then the data will be written to a file and stored

7. Real time softwear

   • Softwear that has to respond instantly like a heart monitor