This document discusses an introduction to application software. It defines software and hardware, and describes the main types of software: system software, application software, open source software, and proprietary software. Examples are provided for each type, including operating systems, word processors, spreadsheets, and databases. Key aspects of application software like word processors, presentations, and database management systems are explained.

1. KLE SOCIETY'S COLLEGE OF EDUCATION,
VIDYANAGAR, HUBBALLI.
Subject: ICT BASICS:OPERATING SYSTEM AND APPLICAT
ION SOFTWARE.
SEMINAR ON: INTRODUCTION TO APPLICATION SOFTW
ARE.

2. Contents
 Todays Topic: Introduction to Computer application Software
 We will learn
1. What is software?
2. What is Hardware?
3. Types of Software
 System s/w, Application s/w, Open source & Propri
etary s/w
4. Examples of system Software
 Operating System, compiler, loader, linker, Interpr
eter
5. Examples of Application Software
 Word processors, Spreadsheets, Presentation, Dat
abase systems

3. Introduction to Computer appl
ication Software

4. Software & Hardware?
 Computer Instructions or data, anything that can be store
d electronically is Software.
 Hardware is one that is tangible. The storage devices (
Hard disk, CD’s etc.,), mouse, keyboard CPU and displa
y devices (Monitor) are Hardware.
For example: There is a problem in the Software implies
– Problem with program or data

6. Types of Software
• System Software
• Application Software
• Open source Software and
• Proprietary Software

7. System Software:
System Software includes the Operating System and all
the utilities that enable the computer to function.
System software is a term referring to any computer sof
tware which manages and controls the hardware so that
application software can perform a task.
Example:
Operating Systems, Compiler, Loader, Linker, Interpreter.

8. System Software:
Operating System:
 Operating System is a software, which makes a compute
r to actually work.
 It is the software the enables all the programs we use.
 The OS organizes and controls the hardware.
 OS acts as an interface between the application program
s and the machine hardware.
 Examples: Windows, Linux, Unix and Mac OS, etc.,

9. System Software (contd):
Source Languages Target Languages
‘C’ language ‘C’ language
‘Pascal’ language Machine language
FORTRAN language
C++ language
ADA language
Compiler: A compiler is a program that reads a prog
ram in one language – the source language and tran
slates into an equivalent program in another languag
e – the target language.

10. System Software (contd):
Loader: A loader is the part of an operating system that i
s responsible for loading programs into memory, prepari
ng them for execution and then executing them.
The loader is usually a part of the operating system's ker
nel and usually is loaded at system boot time and stays i
n memory until the system is rebooted, shut down, or po
wered off.
In Unix, the loader is the handler for the system call exec
ve().

11. System Software (contd):
Linker: A linker or link editor is a program that takes on
e or more objects generated by compilers and assemble
s them into a single executable program.
Linkers can take objects from a collection called a library
. The objects are program modules containing machine c
ode and information for the linker.
The linker takes care of arranging the objects in a progra
m's address space.

12. System Software (contd):
Interpreter: An interpreter is a computer pro
gram that translates and executes instructions w
ritten in a computer programming language line-
by-line, unit by unit etc.,
An interpreter needs to be able to analyze, or pa
rse, instructions written in the source language.
Example: Lisp systems, etc.,

14. Application Software:
Application Software includes programs that do real work
for user.
Example:
Payroll systems, Inventory Control, Manage student data
base, Word Processor, Spreadsheet and Database Man
agement System etc.,

17. Application Software:
Word Processors:
Word processing is a tool that helps user in creating, edit
ing, and printing documents. Word processors will norma
lly have the following capabilities built into them:
 Spell checking
 Standard layouts for normal documents
 Have some characters appear in bold print, ital
ics, or underlined
 Center lines, make text line up on the left side
of the paper, or the right side of the paper
 Save the document so it can be used again
 print the document.
Examples: WordPerfect and Microsoft Word

18. Application Software
(contd…):
Graphic Presentations: The presentation prog
rams can make giving presentations and using overhead
s easier. Other uses include:
 Slide Shows
 Repeating Computer Presentations on a comp
uter monitor
 Using Sound and animation in slide shows
The most recognized graphic presentation programs are
Microsoft PowerPoint and Harvard Graphics.

19. Application Software
(contd…):
Database Management System (DBMS):
 A DBMS is a software tool that allows multiple users to st
ore, access, and process data into useful information.
 Database programs are designed for these types of appli
cations:
 Membership lists
 Student lists
 Grade reports
 Instructor schedules
All of these have to be maintained so you can find what y
ou need quickly and accurately.
 Example:Microsoft Access, dBASE, Oracle.

21. Application Software
(contd…):
Spreadsheets: The spreadsheet packages are des
igned to use numbers and formulas to do calculations wit
h ease. Examples of spreadsheets include:
 Budgets
 Payrolls
 Grade Calculations
 Address Lists
The most commonly used spreadsheet programs are Mi
crosoft Excel and Lotus 123.

23. Open Source Software:
 Open source software (OSS) is computer software w
hose source code is available under a license that permit
s users to use, change, and improve the software, and to
redistribute it in modified or unmodified form.
 It is often developed in a public, collaborative manner.
Well-known OSS products are Linux, Netscape, Apache,
etc.,

24. Proprietary Software:
 Proprietary software (also called non-free software
) is software with restrictions on using, copying and m
odifying as enforced by the proprietor. Restrictions on
use, modification and copying is achieved by either le
gal or technical means and sometimes both.
 Proponents of proprietary software are Microsoft.
 Ex: CAD, Nortan Antivirus etc.,