Operating Systems - created from Mind Map

Definition: is a software program that controls a computer and manages its tasks and allows one component to work with another.

Tasks:

Types of OS Interfaces (used to give computers commands)

Accepts Inputs from external sources

Sends outputs to Monitor and/or Printer

Recognizes and uses external devices

Manages files and folders in system

Shares out system memory. Decides how much memory is needed to perform a certain task. Controls memory input and output

Manages System security with passwords

Moves data to and from hard disks

Loads and runs software applications

Mouse

Keyboard

external harddisks

thumbdrives

web cam

Naming,, Creating, Moving, Funding and Deleting folders/files

Command Line Interface (CLI)

Graphical User Interface (GUI)

Touchscreen Interface (post WIMP interface)

Old system where commands are typed in keyboard

No icons or images

All black screen (like terminal app) so it uses less energy/power

Around 270 different commands that all need to be typed without errors

Hard to Use/Complicated system because commands have to be memorized

Use more power

easy to use and thus more popular

commands are entered by mouse clicks not keyboard

Features: WIMP

Windows

Icons

Menus

Pointers

No room for mouse use, fingers are used to select icons

Similar to a GUI due to icon and menus

Main Features: pinching, scrolling, rotating

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