Operating System

Operating System

1. Multitasking

   • Modern CPU's work much faster than RAM and other components which means that they can cope with more than one process at a time
   • If a program is running slow, rather than letting the CPU run idle it will turn its attention to another process.
   • Several programs can be ran at once with multitasking.

2. The User Interface

   • Provides a means of communication between the user and the operating system
   • The kernel can provide a range of user interface
     • The user interface layer is above the kernel

3. Drivers

   • Drivers allow a peripheral device to be connected to a computer

4. Peripherals Management

   • A peripheral is a piece of hardware that is not directly connected to the CPU – such as a keyboard, a mouse or even a hard disk drive
   • The Operating System manages all of the peripheral devices that are connected to the computer – this allows them to be disabled, or drivers be updated.

5. File Management

   • The operating system must be able to identify where files are stored for long term storage e.g. the hard disk drive or a solid state drive

6. Operating Systems manage the way in which hardware interacts with software

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