Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chap 9 : Operating System ( Managing…
Chap 9 : Operating System ( Managing Coordinating & Monitoring Resources )
purpose
start & shut down a computer or mobile devices
provide a user interface
manage programs
File manager
Search
Image viewer
Uninstaller
Disk cleanup
Disk defragmenter
Screen saver
File compression
PC maintenance
Backup and Restore
Power management
manage memory
coordinate tasks
configure devices
monitor performances
program that assesses and reports information about various computer resources and devices
establish internet connections
provide file management & other devices or media related tasks
updating operating system softwares
automatic update feature that regularly provides new features or corrections to the program
control a network
administer security
Add & remove users, computers and other devices
Configure the network, install softwares and administer network security
POWER
if comp or mobile devices OFF, PRESS a POWER to turn it on
Sleep mode : i) saves any documents and running programs or apps to RAM
ii) turns off unneeded function
iii) places the computer at low-power state
Hibernate : i) saves any open documents and running prorams or apps to INTERNAL HARD DISK before removing power
Affects the productivity
Single tasking and multitasking
Foreground and background
Microsoft Word @ screen (foreground)
Calendar, Google Maps, FIle Explorer (background)
Single user and multi user
Memory
Memory management : optimizes the use ofthe computer or devices internal memory
Virtual memory : portion of storage medium functioning as additional RAM
Types
Desktop
Windows
macOS
ease of use
UNIX
multitasking OS developed in early 1970s
Linux
Chrome OS
Linux_based OS designed to work primarily with web apps
Server
Windows Server
macOS Server UNIX
Linux
popular, multitasking UNIX-based OS
Mobile
Google Android
open source, Linux-based mobile OS @ smartphones and tablets
Apple iOS
developed by Apple, proprietary mobile OS specific for Apple devices only
Windows (Mobile Edition)
developed by Microsoft that runs on some smartphones