Lecture-3: Operating System & Application Softwares

Lecture-3: Operating System & Application Softwares

1. LECTURE 03
OPERATING SYSTEM
& APPLICATION
SOFTWARE'S
Mr. Mubashir Ali
Lecturer(Dept. of Computer Science)
[email protected]

2. Living in a Digital World
Discovering
Computers 2010

3. Objectives Overview
Define system
software and identify
the two types of
system software
Describe the
functions of an
operating system
Summarize the
startup process on a
personal computer
Summarize the
features of several
stand-alone operating
systems
Briefly describe
various server
operating systems
Summarize the
features of several
embedded operating
systems
Explain the purpose
of several utility
programs
Discovering Computers 2010: Living in a Digital World
Chapter 8
3
See Page 397
for Detailed Objectives

4. System Software
•System softwareconsists of the programs that
control or maintain the operations of the
computer and its devices
Discovering Computers 2010: Living in a Digital World
Chapter 8
4Page 398
Operating
systems
Utility
Programs

5. Operating Systems
•An operating system(OS) is a set of programs containing
instructions that work together to coordinate all the
activities among computer hardware resources
Discovering Computers 2010: Living in a Digital World
Chapter 8
5Pages 398 -399
Start and shut
down a
computer
Provide a user
interface
Manage
programs
Manage
memory
Coordinate
tasks
Configure
devices
Establish an
Internet
connection
Monitor
performance
Provide
utilities
Automatically
update
Control a
network
Administer
security

6. Operating System Functions
•The process of starting or restarting a computer is
called booting
Discovering Computers 2010: Living in a Digital World
Chapter 8
6Page 400
Figure 8-2
Cold boot
•Turning on
a computer
that has
been
powered off
completely
Warm boot
•Using the
operating
system to
restart a
computer

7. Operating System Functions
•A user interface
controls how you
enter data and
instructions and
how information is
displayed on the
screen
•With a graphical
user interface
(GUI), you interact
with menus and
visual images
Discovering Computers 2010: Living in a Digital World
Chapter 8
7Pages 402 –403
Figure 8-4

8. Operating System Functions
•How an operating system handles programs
directly affects your productivity
Discovering Computers 2010: Living in a Digital World
Chapter 8
8Pages 404 -405
Single user and
multiuser
Single tasking
and
multitasking
Foreground and
background
Preemptive
multitasking
Multiprocessing

9. Operating System Functions
•Memory managementoptimizes the use of RAM
•Virtual memoryis a portion of a storage medium
functioning as additional RAM
Discovering Computers 2010: Living in a Digital World
Chapter 8
9Page 406
Figure 8-8

10. Operating System Functions
•A performance monitoris a program that
assesses and reports information about various
computer resources and devices
Discovering Computers 2010: Living in a Digital World
Chapter 8
10Pages 408 –409
Figure 8-11

11. Operating System Functions
•Operating systems often provide users with the
capability of:
Discovering Computers 2010: Living in a Digital World
Chapter 8
11Page 409
Managing files
Searching for
files
Viewing
images
Securing a
computer
Uninstalling
programs
Cleaning up
disks
Defragmenting
disks
Diagnosing
problems
Backing up
files and disks
Setting up
screen savers

12. Operating System Functions
•Automatic updateautomatically provides updates
to the program
Discovering Computers 2010: Living in a Digital World
Chapter 8
12Page 409
Figure 8-12

13. Types of Operating Systems
Discovering Computers 2010: Living in a Digital World
Chapter 8
13Pages 411 –412
Figure 8-14

14. Embedded Operating Systems
•An embedded operating systemresides on a ROM chip
on a mobile device or consumer electronic device
Discovering Computers 2010: Living in a Digital World
Chapter 8
14Pages 418 -420
Windows
Embedded CE
Windows
Mobile
Palm OS iPhone OS
Blackberry
Embedded
Linux
SymbianOS

15. Utility Programs
•A utility programis a type of system software that
allows a user to perform maintenance-type tasks
Discovering Computers 2010: Living in a Digital World
Chapter 8
15Page 421
Figure 8-27

16. Utility Programs
•A file manageris a
utility that performs
functions related to file
management
–Displaying a list of files
–Organizing files in folders
–Copying, renaming,
deleting, moving, and
sorting files and folders
–Creating shortcuts
Discovering Computers 2010: Living in a Digital World
Chapter 8
16Page 422
Figure 8-28

17. Utility Programs
•A search utilityis a program that attempts to
locate a file on your computer based on criteria
you specify
Discovering Computers 2010: Living in a Digital World
Chapter 8
17Page 422
Figure 8-29

18. Summary of Operating Systems
Definition of an
operating system
Functions common to
most operating systems
Variety of stand-alone
operating systems,
server operating
systems, and embedded
operating systems
Several utility programs
Discovering Computers 2010: Living in a Digital World
Chapter 8
18Page 429

19. Objectives Overview of Application software’s
Identify the four
categories of
application software
Differentiate among the
seven forms through
which software is
available
Explain how the
operating system and
utility programs work
with application
software
Describe characteristics
of a user interface
Identify the key
features of widely used
business programs
Discovering Computers 2010: Living in a Digital World
Chapter 3
19
See Page 141
for Detailed Objectives

20. Objectives Overview
Identify the key
features of widely used
graphics and
multimedia programs
Identify the key
features of widely used
home, personal, and
educational programs
Discuss the advantages
of and ways to access
Web applications
Identify the types of
application software
used in
communications
Describe the learning
aids available for
application software
Discovering Computers 2010: Living in a Digital World
Chapter 3
20
See Page 141
for Detailed Objectives

21. Application Software
•Application softwareconsists of programs
designed to make users more productive and/or
assist with personal tasks
Discovering Computers 2010: Living in a Digital World
Chapter 3
21Page 142
To make business activities more efficient
To assist with graphics and multimedia projects
To support home, personal, and educational tasks
To facilitate communications

22. Application Software
Discovering Computers 2010: Living in a Digital World
Chapter 3
22Page 142
Figure 3-1

23. Application Software
•Available in a variety of forms:
Discovering Computers 2010: Living in a Digital World
Chapter 3
23Pages 142 –143
Packaged
software
Custom
software
Web
application
Open source
software
Shareware Freeware
Public-domain
software

24. Business Software
•Business softwareis application software that
assists people while performing business activities
Discovering Computers 2010: Living in a Digital World
Chapter 3
24Page 146
Word
Processing
Spreadsheet Database Presentation
Note taking
Personal
information
manager
Business
software for
phones
Business
software
suites
Project
management
Accounting
Document
management
Enterprise
computing
software

25. Business Software
•Additional word processing features include
Discovering Computers 2010: Living in a Digital World
Chapter 3
25Page 148
Figure 3-6
AutoCorrectAutoFormatCollaborationColumns
Grammar
Checker
Ink Input Macros Mail Merge
Reading
Layout
Research
Search and
Replace
Smart Tags Tables Templates Thesaurus
Tracking
Changes
Voice
Recognition
Web Page
Development
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Word Processing
Software below Chapter 3

26. Business Software
•A function is a predefined formula that performs
common calculations
Discovering Computers 2010: Living in a Digital World
Chapter 3
26Page 152
Figure 3-9
FV NPV PMT PV RATE DATE
NOW TIME ABS INT LN LOG
ROUND SQRT SUM AVERAGECOUNT MAX
MIN STDEV IF

27. Business Software
•Charting depicts data in a spreadsheet in
graphical form
Discovering Computers 2010: Living in a Digital World
Chapter 3
27Pages 152 –153
Figure 3-10

28. Business Software
•A databaseis a collection of data organized in a manner
that allows access, retrieval, and use of that data
–Database softwareallows users to create, access, and manage
a database
Discovering Computers 2010: Living in a Digital World
Chapter 3
28Page 153
Figure 3-11
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Database
Software below Chapter 3

29. Business Software
•Presentation software
allows users to create
visual aids for
presentations to
communicate ideas,
messages, and other
information to a group
Discovering Computers 2010: Living in a Digital World
Chapter 3
29
Page 154
Figure 3-12
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Presentation
Software below Chapter 3

30. Business Software
Discovering Computers 2010: Living in a Digital World
Chapter 3
30Page 155
Figure 3-13

31. Business Software
•A software suiteis a collection of individual
programs available together as a unit
•A personal information manager (PIM) is
application software that includes
Discovering Computers 2010: Living in a Digital World
Chapter 3
31Page 156
Appointment
calendar
Address
book
Notepad
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Microsoft Office
below Chapter 3

32. Business Software
Project management softwareallows a user to plan,
schedule, track, and analyze the events, resources, and
costs of a project
Accounting softwarehelps companies record and report
their financial transactions
Document management softwareprovides a means for
sharing, distributing, and searching through documents by
converting them into a format that can be viewed by any
user
Discovering Computers 2010: Living in a Digital World
Chapter 3
32
Pages 157 –158
Figures 3-16 –3-18

33. Business Software
•Enterprises typically require special computing
solutions for various functional units
Discovering Computers 2010: Living in a Digital World
Chapter 3
33Page 159
Human
resources
AccountingEngineeringMarketing
Sales Distribution
Customer
service
Information
technology

34. Graphics and Multimedia Software
Computer-aided
design (CAD) software
Desktop publishing
software
Paint/Image editing
software
Discovering Computers 2010: Living in a Digital World
Chapter 3
34
Pages 160 –161
Figures 3-20 –3-22
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Graphics Software
below Chapter 3

35. Graphics and Multimedia Software
Discovering Computers 2010: Living in a Digital World
Chapter 3
35
Pages 162 –163
Figures 3-23 –3-25
Professional photo
editing software
Video and audio editing
software
Multimedia authoring
software

36. Software for Home, Personal, and
Educational Use
Personal finance
software
Legal software
Tax preparation
software
Discovering Computers 2010: Living in a Digital World
Chapter 3
36
Pages 166 –167
Figures 3-28 –3-30
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Tax Preparation
Software below Chapter 3

37. Software for Home, Personal, and
Educational Use
Personal DTP
software
Personal paint/image
editing software
Personal photo
editing software
Discovering Computers 2010: Living in a Digital World
Chapter 3
37
Pages 167 –169
Figures 3-31 –3-33
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Desktop Publishing
Software below Chapter 3

38. Software for Home, Personal, and
Educational Use
Clip art/image gallery
Video and audio editing
software
Home design/landscaping
software
Discovering Computers 2010: Living in a Digital World
Chapter 3
38
Pages 169 –170
Figures 3-35 –3-37

39. Software for Home, Personal, and
Educational Use
Travel and mapping software
Reference software
Educational software
Entertainment software
Discovering Computers 2010: Living in a Digital World
Chapter 3
39
Pages 170 –171
Figures 3-38 –3-41
Click to view Web Link,
click Chapter 3, Click Web
Link from left navigation,
then click Game Software
below Chapter 3

40. Summary of Application software's
How to start and interact
with application software
Overview of a variety of
business software, graphics
and multimedia software,
and
home/personal/educational
software
Web applications and
application software for
communications
Learning tools for
application software and
Web-based training
Discovering Computers 2010: Living in a Digital World
Chapter 3
40Page 177