2. OPERATING SYSTEM
•It provide interface between user and
hardware.
operating
system is the set of programs that
controls a computer.
3. TYPES OF OPERATING SYSTEM
Client OS
A client operating
system is generally a
single user operating
system. where only 1
user can be actively
using the computer at
any one time.
like Windows®
Network O.S
An operating system
that is designed for a
server. Normally it is
complete operating
system with
file,task,and job
management.
Like- Linux, Unix,
Netware
4. Function of O.S
User Interface
File Management
Disk Management
Device Management
Memory Management
Networking & Security
5. User Interface :- OS acts as a mediator between hardware & user. It also
interacts with the hardware on behalf of user.
File Management :- A file is a collection of information stored on a disk.
OS is responsible to retrieve the content of the file or to remove the
file from the storage media, when the user gives the necessary
commands.
Device Management :- OS is responsible for managing various input &
output devices attached to the computer ; it controls the working of
hard disk, displaying output on monitor, or communicating with
peripherals like printers.
Memory Management :- OS helps in managing the memory i.e. whether
memory is free or which memory can be allocated or deallocated to a
resource(like printer or software application )
Process Management :- Every program(service or application) running
on a computer is a process and OS determines how to allocate the
CPU to any given process, this is called process managing.
Networking :- OS helps in interconnection between IP(Internet Protocol)
& computer.
Security :- OS provides some or other form of security levels like
firmware, password protection.
6. A
u
bo
t
By:
Theresa
&
•Windows--- A Graphical User Interface Operating System for
Chad
Personal Computers.
Windows-XP, Windows-7,Windows-8 and …
Windows-9 is coming soon
Windows-9 to be cheaper, with-out
startbutton,smaller,with more apps.
