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Operating systems Functions (🦋Program management features…
Operating systems
Functions
🦋Booting
-process of starting/ restarting a computer
a.cool boot
-turning on computer that has been powered off
b.warm boot
-restarting computer that is powered on
🦋User interface
-control how to enter data and instructions and how
Information displays on screen
🦋single user/multitasking
-working in two or more programs that reside in memory at the same time
+foreground contains programs that we using
+background contauns programs that runnung but not in use
🦋Program management features
Multiprocessing
-can support two or more processors running programs at the same time
Multiuser
-enables two or more users to run programs simultaneously
Fault-tolerant computer
continues to operate when one of its components fails
🦋memory management
-optimizing use of random access memory(RAM)
-virtual memory(VM), portion of hard disk is allocated to function as RAM
🦋Graphical user interface (GUI)
-user interacts with menu and visual images such as buttons and other graphical objects
🦋Device driver
-tell operating system how to communicate with device(driver)
-with plug and play operating system automatically configures new devices as you install them
🦋Network operating system
-allows users ti share resources on a network
-administers security by establishing user name and password for each user
Operating system utility programs
🦆File manager
-performs functions related to fild management
-search utility attempts yo locate files on computer
🦆Personal firewall
-detects and protects a personal computer from unauthorized intrusions
🦆Uninstaller
Removes a program and all associated files
In window vista, uninstaller is available through the uninstall a program command in the control panel
🦆Disk scanner
-Searches and removes unnecessary files
-window vista includes Disk cleanup
🦆Disk defragmenter
-reorganizes files and unused space on hard disk so that programs run faster
🦆Backup utility
-copies selected files of entire hard disk onto another storage medium
-most compress files during backup to require less storage space
🦆screen saver
-cause monitor's screen to display moving image or blank screen if there is no activity for a specified time
Stand-alone operating systems
🦥WINDOWS XP
-fast,reliable windows operating system
-available in 5 editions
▪︎home
▪︎professional
▪︎tablet pc
▪︎media center
▪︎64-bit
🦥Windows Vista
-sucxessor to window Xp
-available in several editions,grouped into Home and Business categories
🦥Max OS X
-available only for computers manufactured by apple
-macintosh operating system has been model for most GUIs
🦥UNIX
-used power users because of its flexibility and power
-most versions offer GUI
🦥LINUX
-popular,free,multitasking UNIX-type operating system
-open-source software-code available for public
-both a stand-alone and a network operating system
ANATASSYA BRITNEY ANAK NYANDANG
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