ABOUT OPERATING

ABOUT OPERATING

1. What is an operating system?

   • Is the most important software that runs on a computer
   • An OS is a software that acts
     • an interface between the end-user
     • The hardware of the computer

2. OS

   • Operating System manages the computer´s memory and processes
     • As well as all of its software and hardware
   • Without an operating system a computer is useless
   • Usually come pre-loaded on any computer you buy
   • It also allows you to communicate with the computer without knowing
     • How the speak the computer´s languange

3. The Operating System´s Job

   • Handles inputs and outputs
   • Recognises and installs peripheral devices
   • Manages files and folders
   • Shares out system memory
   • Handles system errors and alerts user
   • Manages system security
   • Allows software to communicate with hardware
   • Moves data to and from the hard disk
   • Loads and runs other software applications

4. Role of an operating system

   • Provides security and prevents unauthorised access to a system
   • Helps the user interact with the computer through a user interface
   • Helping
     • Save files
     • Find files
     • Delete files
   • Manage
     • Input devices
     • Output devices
     • Backing devices
   • Allows users to load run and store applications
   • Decided what should be loaded
     • Deleted from memory

5. Objetives

   • To make the computer system convenient to use in an efficient manner
   • To provide users a convenient interface to use the computer system
   • To act as an intermediary between the hardware
   • To manage the resources of a computer system
   • To provide efficient and fair ring of resources among usersand programs

6. Characteristics

   • Memory management virtual
   • Memory multitasting
   • It is reliable
   • Should coordinate
   • Have control of input - output
   • Information and resource protection

7. Type of Operating System

   • Apple MAC OS
   • Apple iOS
   • Linux System Operating
   • Microsoft Windws

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