vr-may

1 st May 2019
TALENT
ACADEMY
VIJAYAREKHA Volume VII Issue No. 05 PSC a’-c-]-co£m amknI
Software is a set of instructions given
to computer, written in particular
language (C, C++, Java etc) to control
and coordinate computer hardwares.
Software cannot be sensed by
touch.
People those who develop softwares
are known as
Programmers.
Software is usually divided into
two major categories
System software
Interface Manager: Provide a user
interface.
Program Manager: Provide a
structure for accessing an application
Task Manager: Enable users to
manipulate programs and data.
File Manager : Manage the files,
folders and directory systems on a
computer.
Network Manager : Provide basic
networking structure for LAN and
Internet.
BIOS & POST
Built in Software that performs
basic computer hardware
functions is
BIOS (Basic Input Output
system)
First software program which
runs when the power is turn on
BIOS
BIOS is stored in
Mobile Operating
Systems
Windows Mobile (Microsoft),
Android (Google), iOS (Apple),
BlackBerry OS (Research in
Motion)
Versions
Latest Version of Android
Android 9 Pie
Application software
Types of Operating System
ROM
Initial set of diagnostic tests
Single User
performed by the BIOS to verify
SYSTEM SOFTWARE
System software is a set of one or
more programs which are designed
to coordinate the operations of
various hardware components of
the computer.
It is designed to run hardware and
application programs of computer.
The main components of system
software are
Operating System
Language Processors
Utility Software
Operating System
Operating system is a collection
of programs which controls the
overall operations of the
computer.
It works as an interface between
computer hardware and user.
Major Functions of an
Operating system
Device Manager:Communicate
with hardware and the attached
devices
Memory Manager: Manage
different types of memories
Allows one user to operate the
computer and run different programs
on the computer.
Eg: MS DOS
Multi-user
Allows two or more users to run
programs at the same time on a single
computer system.
Eg: Unix, Linux, Windows
Real time
Responds to input instantly. Realtime
operating systems are
commonly found and used in
robotics, complex multimedia and
animation, communications and has
various military and government
uses.
Don’t
Confuse
Multiprocessing
Supports allocating programs
on more than one CPU
(processor).
Multitasking
Allows more than one program
(task) to run concurrently.
Multithreading
Allows different parts of a single
program to run simultaneously
all hardware is working properly
when the computer is turned on
POST (Power On Self Test)
Important Operating
Systems
DOS, WINDOWS, LINUX,
MAC OS, UNIX, UBUNTU
Windows operating system was
developed by
Microsoft
Founders of Microsoft
Bill Gates, Paul Allen
Mac OS (Macintosh Operating
System) was developed by
Apple
AIX, the unix associated operating
system was developed by
IBM
Operating system in which
assembly language was first used
UNIX
Linux Operating system was
developed by
Linus Benedict Torvalds
Linux is a free software
First fully supported 64-bit
Operating System
Linux
Cupcake, Sandwich, Ginger
bread, Jelly Bean, Kitkat,
Lolipop, Marshmallow, Nougat,
Oreo are some versions of
Android.
Latest version of windows
operating system
Windows 10
Versions of Mac OS
Leopard, Snow leopard, Mountain
Lion, Mavericks etc.
The software package known as
“India’s own PC Operating
System”
BOSS GNU/ Linux (BOSS)
BOSS
Bharat Operating System
Solutions
Number of languages supported
by BOSS - 18
World’s first Chat Operating
System
Flock OS
Firmware
Software which is available on
hardware
Firmware
Firmware is stored in
ROM
Firmware is a combination of
hardware and software
Examples of firmware
ROM, EPROM, Flash Memory
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