Operating Systems

Operating Systems

1. Functions

   • It manages the computers resources such as the central processing unit,memory,disk drives and printers.
   • It establishes the user interface.
   • It executes and provides services for applications software.
   • Interface- Provides a user interface so it is easy to interact with the computer
   • Multi-taks- Allows multiple applications to run at the same time.
   • Manages the CPU-Runs applicatons and executes and cancels processes.
   • Organises - Creates a file system to organise files and directories.
   • Utilities - Provides tools for managing and organising hardware
   • Security - Provides security through user accounts and passwords.
   • Manages memory- Transfers programs into and out of memory, allocates free space between programs and keeps track of memory usage.
   • Manages Peripherals-opens, closes and writes to peripheral devices such as storage attached to the computer.

2. Common Features GUI

   • They all have a tab bar
   • YOu can download apps and other things
   • Move files around easily
   • Icon driven
   • They have the same layout
   • You can serch for files and apps via the same thing.
   • easy to use