97 Find the matrix Q such that Q[ 1 -2 3]
0 5 -/-
1-4 52 m
I - 2 3
-4 5 2
05 -11
3
Answers
Answer:
COMPUTER CLASS-6
LESSON–FILEMANAGEMENT–ORGANISATIONOFDATA
QI.Writeshortnoteson:
OPERATINGSYSTEM:Anoperatingsystemisthemost
commonandimportantsoftwarethatrunsonacomputer.
Itactsasaninterfacebetweentheuserandthehardware.
WindowsisoneofthemostpopularGraphicalUser
Interfacebasedoperatingsystem.
DESKTOP:Thefirstscreenthatappearsonthemonitorwhen
thecomputersystem getloadedorbootediscalleddesktop.
Itisthe
primarycompulsorywindowthatcanbeusedtoviewafile,
afolderoraprogram.Italsoactsasanobjectholderfor
icons,gadgetsandotherapplications.
c)TASKBAR:Thetaskbaristhehorizontalbarpresentatthe
bottomofthedesktop.Itconsistsoffourpartssuchas
thestartbutton,themiddlesection,thenotificationarea
andtheshowdesktopbutton.
d)ICONS:Iconsaresmallgraphicalrepresentationof
files,folders,programsorotheritems.Iconsaregenerally
presentonthelefthandsideofthedesktop.RecycleBinis
theonlycompulsoryiconpresentonthedesktop.Some
othercommondesktopiconsareComputer,Folder,Fileetc.
1 the answer is eleven 11