Operating Systems (OS)

Defintion
1. Collection of programs that control the system hardware resources
2. Acts as a common programming layer between hardware and the user
  1. This extracts complexity of hardware away from the user
    1. Perfroms all the technical complex parts of running a computer with you just doing a very simplified version
3. Controls communication to the peripherals devices
  1. Speakers
  2. Secondary Storages
    1. HDD
    2. SDD
  3. Microphones
Resource Manager
1. Manages and allocates resources of the computer to allow multitasking
2. Tasks compete for resources e.g. processor time, memory – the OS allocates resources to these processes.
Security Handling
1. On multi-users system, it allows users with correct permissions to access resources.
2. Allows safe file sharing as required
3. Stops other users reading your files
Client
1. Allows user access to word, excel
2. Examples
  1. Windows OS
  2. Linux
  3. Mac OS
Server
1. Dedicated computer for other computers to access
2. Can host
  1. Files
  2. Gaming
  3. Streaming movies, music etc.
3. Windows server, Mac server, Linux (raspberry pie)
Features of a GUI (Graphical User Interface)
1. WIMP
  1. Windows
  2. Icons
  3. Menus
  4. Pointers

Resumo de Recurso

	Criado por rwc.carlton quase 10 anos atrás