Os Operating system
Windows 98, xp, 7 , 10 Unix Linux dos are example os.
Control internal functioning
Computer cannot run without os
It manage technical details
Manage resource
Provide user interface gui cui
Manage running application
Window os was loanched in 1985
Upgrade - means to change window 9 to window 10
Useful study material of computer for banking rscit all other competitive exam
Gui grafical user interface
Element of gui.
Icon
Menu
Pointer curser
Windows
Dialog box Help
Type OF OS
Time sharing [time slie time quentum]
Real time [reservation,GPS]
Batch processing
Perlal processing
User interface
Gui (grafical user interface)
Window is gui based os.
Cui (character user interface)
Dos disk operating system is cui based os.
File system
Fat - file allocation table
Ntfs new technology file system
Booting
Boot- start pc a process in which computer load os in ram from rom
reboot - restart
Cold boot – systematicaly start os by cpu
Warm boot - we do after a software dowanload
Shut down - systematically close os
Window os :- is mostly used os.
Linux :- free version of UNIX.
Embedded os :- software stored on rom -android ,kitkat ,loylipop
DESKTOP OS :- stored on hard disk.
Mac os :- is used by graphic designer and multimedia expert .
iOS :- apple I phone os
Leopard :- a version of Mac os
Nos :- network operating system
Nos control coordinate interlinked computer
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Post - power on self test
Post process Check hardware are they properly working.
Multitasking is a ability of computer to perform more than one task at a time
Os load Device driver it in memory every time when computer restart
Full form
Os - operating system
Acpi - advance configration power interface
Bios - basic input out put system
Dos - disk operating system
Fat - file allocation table
Ntfs - new technoloogy file system
Post – power on self test
Message
Accept -ok
Deny - no
Proceed – go ahead
Halt - stopped program
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