3 software categories 1. 3 2 application software productivity software can be defined as any type...

3 Software Categories

1

3

2

Application Software Productivity software can

be defined as any type of application software that has the potential to help people do their work more efficiently

Groupware software is designed to help several people collaborate on a single project using local networks or Internet connections

3 Utility Software Utility software (a type of

system software) is designed to help you monitor and configure settings for your computer system equipment, the operating system, or application software

A desktop widget is a specialized utility program that appears on a computer’s screen-based desktop

3

3 Device Drivers A device driver is software

that helps a peripheral device establish communication with a computer

Windows Device Manager

4

3

5

Popular ApplicationsPopular Applications Document Production Software Spreadsheet Software “Number Crunching” Software Database Software Graphics Software

Music Software Video Editing and DVD Authoring Software Educational and Reference Software Entertainment Software Business Software

3

6

“Number Crunching” Software Provides a structured environment dedicated to a particular

number crunching task– Statistical software– Mathematical modeling software– Money management software

• Personal finance software– Tax preparation software

3

7

Database Software A database is a collection of data

– Database software helps you enter, find, organize, update, and report information stored in a database

3

8

Database Software

Database software provides tools for specifying fields for a series of records.

3

9

Database Software A query language such as SQL (Structured Query

Language) provides a set of commands for locating and manipulating data– Natural language query– Query by example

3

10

Graphics Software Designed to help you

create, manipulate, and print graphics– Paint software– Photo editing software– Drawing software– 3-D graphics software– CAD software– Presentation software

3

11

Graphics Software

A computer-based presentation consists of a series of slides, created with presentation software.

3

12

Music Software Allows you to make your own digital voice and music

recordings– Audio editing software– CD ripper software– Audio encoding software– Ear training software– Notation software– Computer-aided music software– MIDI sequencing software

3

13

Video Editing and DVD Authoring Software

Provides a set of tools for– Transferring video footage

from a camcorder to a computer

– Clipping out unwanted footage– Assembling video segments– Adding special visual effects– Adding a sound track

DVD authoring software creates DVDs with Hollywood-style menus

3

14

Educational and Reference Software

Educational software– Helps you learn and practice new skills

Reference software– Provides a collection of information and a way to access

that information– Generally shipped on CD or DVD, or accessed on the

Web

3

15

Entertainment Software Computer games are the most popular type of entertainment

software– Role-playing– Action– Adventure– Puzzle– Simulation– Sports– Strategy

3

16

Business Software Vertical market software is designed to automate specialized

tasks in a specific market or business Horizontal market software is generic software that just

about any type of business can use– Payroll software– Accounting software– Project management software

3 Consumer Basics Most operating systems

include a handful of small applications and a good variety of useful utility software

17

3

18

Consumer Basics A software suite is a collection of application software sold

as a single package

3

19

Consumer Basics Available in many types of stores Software contained on distribution media Make sure your computer meets the system requirements

3

20

Software Copyrights and Licenses

A copyright is a form of legal protection that grants the author of an original “work” exclusive rights– Copyright notice

Software licenses, also called license agreements, define the ways in which you may use a computer program– Single-user– Site– Multiple-user– Concurrent– Shrink-wrap

3 Software Copyrights and Licenses

EULA (End-User License Agreement) Different types of software licenses

– Public domain

– Proprietary

– Commercial software

– Demoware

– Shareware

– Freeware

– Open source

– BSD

– GPL

21

3

22

Security Software Basics Security software is designed to protect computers from

various forms of destructive software and unauthorized intrusions

The terms malicious software and malware refer to any computer program designed to surreptitiously enter a computer, gain unauthorized access to data, or disrupt normal processing operations

A blended threat describes malware that combines more than one type of malicious program

3

23

Security Software Basics Computer virus Computer worm

– Mass-mailing worm Trojan horse

– Keylogger– Remote Access Trojan (RAT)

Bot– Zombie– Botnet

Spyware

3

24

Security Software Basics What does malware do?

3

25

Security Software Basics The term rootkit refers to software tools used to conceal

malware and backdoors that have been installed on a victim’s computer

A virus hoax usually arrives as an e-mail message containing dire warnings about a supposedly new virus on the loose

3

26

Antivirus Modules Antivirus software is a type of utility software that looks for

and eradicates viruses, Trojan horses, worms, and bots– A virus signature is a section of program code, such as a

unique series of instructions, that can be used to identify a known malicious program, much as a fingerprint is used to identify an individual

– Virus signatures and other information that antivirus software uses to identify and eradicate malware is stored in one or more files usually referred to as virus definitions

3 Antivirus Modules

27

3 Antivirus Modules Most experts recommend

that you configure your antivirus software to periodically scan all the files on your computer

If, during the scanning process, your virus protection software identifies a virus, worm, Trojan horse, or bot in a file or attachment, it can try to remove the infection, put the file into quarantine, or simply delete the file

28