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Chapter 3 Computer Software 3 Chapter Contents Section A: Software Basics Section B: Popular Applications Section C: Buying Software Section D: Installing Software and Upgrades Section E: Security Software Chapter 3: Computer Software 2 3 SECTION A Software Basics Chapter 3: Computer Software 3 3 Software Categories Chapter 3: Computer Software 4 3 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 is designed to help several people collaborate on a single project using local networks or Internet connections Chapter 3: Computer Software 5 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 Chapter 3: Computer Software 6 3 Device Drivers A device driver is software that helps a peripheral device establish communication with a computer Windows Device Manager Chapter 3: Computer Software 7 3 SECTION B Popular Applications What applications do you use and for what? Chapter 3: Computer Software 8 3 Document Production Software Assists you with composing, editing, designing, printing, and electronically publishing documents – Word processing – Desktop publishing – Web authoring Chapter 3: Computer Software 9 3 Document Production Software Mail merge automatically creates personalized letters by combining the information in a mailing list with a form letter Additional capabilities of word processing software include: – Automatically generating table of contents and index – Numbering and positioning footnotes – Providing document templates – Exporting to HTML format Chapter 3: Computer Software 10 3 “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 Chapter 3: Computer Software 15 3 Database Software A database is a collection of data – Database software helps you enter, find, organize, update, and report information stored in a database Chapter 3: Computer Software 16 3 Database Software A query language such as SQL (Structured Query Language) provides a set of commands for locating and manipulating data Chapter 3: Computer Software 18 3 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 Chapter 3: Computer Software 19 3 Graphics Software A computer-based presentation consists of a series of slides, created with presentation software. Chapter 3: Computer Software 20 3 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 Chapter 3: Computer Software 21 3 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 Chapter 3: Computer Software 22 3 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 Chapter 3: Computer Software 23 3 Entertainment Software Computer games are the most popular type of entertainment software – Role-playing – Action – Adventure – Puzzle – Simulation – Sports – Strategy Chapter 3: Computer Software 24 3 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 Chapter 3: Computer Software 25 3 SECTION C Buying Software Consumer Basics Software Copyrights and Licenses Chapter 3: Computer Software 26 3 Consumer Basics Most operating systems include a handful of small applications and a good variety of useful utility software Chapter 3: Computer Software 27 3 Consumer Basics A software suite is a collection of application software sold as a single package Chapter 3: Computer Software 28 3 Consumer Basics Available in many types of stores Software contained on distribution media Make sure your computer meets the system requirements Chapter 3: Computer Software 29 3 Software Copyrights and Licenses A copyright is a form of legal protection that grants the author of an original “work” exclusive rights Software licenses define the ways in which you may use a computer program – Single-user – Site – Multiple-user – Concurrent – Shrink-wrap Chapter 3: Computer Software 30 3 Software Copyrights and Licenses End-User License Agreement Different types of software licenses – Public domain – Proprietary – Commercial software – Demoware – Shareware – Freeware – Open source – BSD – GPL Chapter 3: Computer Software 31 3 SECTION D Installing Software and Upgrades Installation Basics Installing Local Applications Installing Portable Software and Web Apps Software Updates Uninstalling Software Chapter 3: Computer Software 32 3 Installation Basics Software installation is a process that places a program into a computer so that it can be run or executed Chapter 3: Computer Software 33 3 Installing Local Applications Chapter 3: Computer Software 34 3 Installing Local Applications Chapter 3: Computer Software 35 3 Installing Portable Software and Web Apps Portable software is designed to run from removable storage, such as a CD or USB flash drive – Installation is simply a matter of getting program files to the media on which they are supposed to run A Web application is software that is accessed with a Web browser – May require client-side program to be installed Chapter 3: Computer Software 36 3 Software Updates Software publishers regularly update their software – Add new features – Fix bugs – Update security Software patches replace part of the software you currently have installed Service packs correct problems and address security vulnerabilities Chapter 3: Computer Software 37 3 Software Updates Updates are usually available online for registered software Always install patches and service packs when they become available Many software publishers require users to type in a validation code to complete an update Chapter 3: Computer Software 38 3 Uninstalling Software Uninstall routines delete the software’s files from the various folders on your computer’s hard disk Chapter 3: Computer Software 39 3 SECTION E Security Software Security Software Basics Security Suites Antivirus Modules Chapter 3: Computer Software 40 3 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 Chapter 3: Computer Software 41 3 Security Software Basics Computer virus Computer worm – Mass-mailing worm Trojan horse – Keylogger – Remote Access Trojan (RAT) Bot – Zombie – Botnet Spyware Chapter 3: Computer Software 42 3 Security Software Basics What does malware do? Chapter 3: Computer Software 43 3 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 Chapter 3: Computer Software 44 3 Security Suites A security suite integrates several security modules to protect against the most common types of malware, unauthorized access, and spam A security suite costs less than purchasing standalone security modules Chapter 3: Computer Software 45 3 Security Suites Chapter 3: Computer Software 46 3 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 Chapter 3: Computer Software 47 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 Chapter 3: Computer Software 48