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SYSTEM SOFTWARE, HARANI A/P GANESAN 012020021525 - Coggle Diagram
SYSTEM SOFTWARE
Programs that control or maintain operation of computer
Operating System
Programs that control or maintain operation of computer
a)Booting
Process of starting or restarting a computer
1.Cold boot Turning on computer that has been powered off
2.Warm boot Restarting computer that is powered on
b)user interface
Controls how you enter data and instructions and how information displays on screen
c)graphical user interface (GUI
User interacts with menus and visual images such as buttons and other graphical objects
d)single user/ multitasking?
Working on two or more programs that reside in memory at same time
e)program management features
multiprocessing
Can support two or more processors running programs at same time
multiuser
enables two/more users run the programe simultaneously.
fault-tolerant computer
Continues to operate when one of its components fails
f)memory management
1.Optimizing use of random access memory (RAM)
With virtual memory (VM), portion of hard disk is allocated to function as RAM
g)Device Driver
1.Program that tells operating system how to communicate with device
2.With Plug and Play, operating system automatically configures new devices as you install them
5 examples
Windows XP,Windows Vista,Mac OS X,UNIX,Linux,
Utility Program
System software that performs maintenance-type tasks
A)file manager
a)Performs functions related to file management
b)Search utility attempts to locate files on your computer
b)personal firewall
Detects and protects a personal computer from unauthorized intrusions
c)uninstaller
1.Removes a program and all associated files
2.In Windows Vista, uninstaller is available through the Uninstall a program command in the Control Panel
d)disk scanner
1.Searches for and removes unnecessary files
2.Windows Vista includes Disk Cleanup
e)disk defragmenter
Reorganizes files and unused space on hard disk so that programs run faster
f)backup utility
Copies selected files or entire hard disk onto another storage medium
Most compress files during backup to require less storage space
g)screen saver
Reorganizes files and unused space on hard disk so that programs run faster
HARANI A/P GANESAN 012020021525