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vii. ersonal igital ssistance viii. ersonal Information Management
ix. lug and lay x. Master oot ecord
. ow does operating system act as a messenger between the hardware and the application program
ns. n operating system acts as a messenger between the computer hardware and the application program by
establishing a connection between the application and the hardware device such as a printer attached to a
computer.
. ifferentiate between I and I.
Ans.
CUI OS GUI OS
In I OS the user sends commands and In I OS the interface is graphical i.e. the
instructions to the computer in character form, user interacts with the computer using figures
i.e. by typing commands at the command prompt. and graphics on the screen. It is basically menu
he display on the screen does not contain any driven.
graphics.
I OS is not as interactive and user friendly as I OS is user friendly and interactive.
I OS.
xamples are MS- OS and NI . xamples are indows and inux.
. hat is ime Sharing OS
ns. n operating system that allows the user to work on more than one application by switching between them
is called a ime Sharing OS. he switching occurs so fre uently that the user can interact with each program
conveniently.
5. Write any four functions of OS.
ns. Four functions of an operating system are as follows:
Device Management: OS directly controls the operation of the input-output devices like controlling the action
of the printer or the - OM drive.
Process Management: OS handles the scheduling and synchronisation of processing suspension and
resumption of processes. OS independently prioritises obs for processing inside a computer.
Memory Management: OS co-ordinates and controls the use of memory in a computer.
Security Management: OS protects information and resources against destruction and unauthorised usage.
. ist the names of any five operating systems.
ns. he names of five operating systems are:
MS- OS NI
Solaris MS indows
inux
. ist the name of five inux distributions.
ns. he names of five distributions of inux operating systems are:
Slackware Solaris
OSS S S
buntu
Touchpad Information Technology-X

