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Computer Concepts 2013
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Chapter3 & 4 Summary
Dr. John P. Abraham
Professor
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3 Chapter 3SoftwareApplication, programming languages and system
softwareMusic, video, graphics, gps, word processing,
spreadsheet, database, desktop publishing, presentation, web application, etc.
Copyright: Public domain, Proprietary, Commercial software, Demoware, Shareware, Open source
Operating system, utilities, drivers, protection software.
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3 Chapter4 SummaryHardwareSoftware
Application softwareSystem software
Operating system
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3 Operating systemOperating System-controls the entire systemCPU (process), multi-core, memory (partition
and protection) and resource (disk, files, etc) management.
Multi-tasking (several programs) and multithreading (performing more than one thing within a program).
Windows, Mac OS, Linux, Android, and iOS.
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3 Files You must adhere to file-naming conventions when
saving files Maximum length, Prohibited characters,No
reserved words Case sensitivity, File extensions provide clues to
the file contents File Directories and Folders To designate a file’s location, you must first specify
the device where the file is stored The main hard disk usually is referred to as drive C
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3 Partition and directoriesA disk partition is a section of hard disk drive that is
treated as a separate storage unitPartitions can be assigned drive lettersPartitions are not the same as foldersA file format refers to the organization and layout of
data that is stored in a fileThe format of a file usually includes a header, data,
and possibly an end-of-file markerA file header is a section of data at the beginning of
a file that contains information about a file
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3 BackupSynchronizationWindows BackupDisk Images and Bare-metal RestoreVirtual MachinesHandheld Backup
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3
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3
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Computer Concepts 2013
Chapter 3Software
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3 Chapter ContentsSection A: Software BasicsSection B: Office SuitesSection C: Installing Software and UpgradesSection D: Buying SoftwareSection E: Security Software
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3 FastPoll True/False QuestionsAnswer A for True and B for False
030100 The town main categories of software are application software and system software.
030200 Location-based software can pinpoint its location by using the device’s built-in GPS or by triangulating the distance from nearby cell towers.
030300 Screen readers are an example of adaptive utility software.
030400 The software you install to help a printer communicate with a computer is called a device driver.
030500 Spreadsheet software is particularly useful for what-if analyses.
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3 FastPoll True/False QuestionsAnswer A for True and B for False
030600 Database software stores information in HTML codes.
030700 Web apps typically are installed on your computer’s local hard disk.
030800 Downloaded software is usually zipped to decrease download time.
030900 If the main screen of a software product does not contain a copyright notice, it is legal to make copies and share them with your friends.
031000 A EULA is a license agreement that specifies how to legally use a software product.
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3 FastPoll True/False QuestionsAnswer A for True and B for False
031100 Open source software is public domain. 031200 A software worm can replicate itself. 031300 Botnets offer effective security protection
from spyware. 031400 To keep your antivirus software up to date,
it is important to get updates of the rootkit.
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3 Section A: Software Basics Software Categories Music Software Video Software Graphics Software Mapping and Location-based Software
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3 Section A: Software Basics Business and “Number Crunching” Software Desktop Publishing Software Personal Finance Software Utility Software Device Drivers
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3 Question 032100 Software publishers offer a huge variety of
products for personal computer owners. From which of the following categories does the typical computer owner purchase add-on software?A. System software and operating systemsB. Application software and utilitiesC. Device drivers and application softwareD. System software and antivirus software
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3 Software Categories
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Software is categorized in two main categories:Application software
Designed to help people accomplish real-world tasks
System softwareDesigned for computer-centric tasks
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3 Music Software Offers many ways to work with music, sound effects, and
narration from your desktop, notebook, or handheld computer iTunes Audio editing software
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3 Video Software Provides a set of tools for creating video productions from
raw footage Consumer-level video editing software
Windows Live Movie Maker Apple iMovie
DVD authoring software
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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
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3 Mapping and Location-Based Software
A mapping application typically displays satellite, aerial, or street maps used to locate places and get directions between two addresses Google Maps
Location-based software is able to access your current location and use it to show you the closest shops, restaurants, and theaters, as well as information about each location Stay alert for devices and software applications that track your
location
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3 Mapping and Location-Based Software
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3 Business and “Number Crunching” 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 kind of business can use Payroll software Accounting software Project management software
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3 Business and “Number Crunching” Software
Provides a structured environment dedicated to a particular number crunching task Statistical software Mathematical modeling software
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3 Desktop Publishing Software Desktop publishing software (DTP software) takes word
processing to the next level by providing professional tools for producing typeset-quality documents DTP software is available in consumer-level and professional-level
versions
DTP software allows you to create a page using multiple frames; some frames can hold text, while other frames can hold titles, graphics, and tables
Today’s word processing software typically provides an adequate feature set for the document production needs of most individuals
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3 Desktop Publishing Software
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CLICK TO START
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3 Personal Finance Software Money management software offers a variety of tools for
tracking cash flow and investments Personal finance software, such as Intuit Quicken, is
designed to keep track of income, expenses, assets, and liabilities using a simple checkbook-like user interface
Tax preparation software is a specialized type of personal finance software designed to help you gather your annual income and expense data, identify deductions, and calculate tax payments
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3 Personal Finance Software
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3 Utility Software Utility software is designed to help you monitor and configure
settings for your digital gear, its operating system, or application software
Third-party software companies offer additional products that extend and improve upon those supplied by the operating system
A PDF reader, such as Adobe Reader, is an essential utility that displays documents stored in standard PDF files
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3 Utility Software Adaptive utilities alter a device’s user interface to create an
accessible environment by providing closed captions, text-to-speech, speech-to-text, or large screen text
System utilities that can track down and fix disk errors, repair corrupted files, and give your device a performance-enhancing tune-up
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3 Device Drivers A device driver is software that helps a peripheral device
establish communication with a computer On a Mac, you can click the Apple icon, select About this
Mac, and then select More info to look at a list of devices connected to your computer
On a PC, if you need to update a device driver or change its settings, you can usually access the driver by using the Start menu’s Control Panel option and opening the System icon
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3 Device Drivers
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3 Section B: Office Suites Office Suite Basics Word Processing Spreadsheets Databases Presentations
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3 Question 032200 Just about everyone has used iTunes
software to download music. iTunes software also allows you to list the songs you’ve downloaded, delete songs, find songs, and organize your music into play lists. These features of iTunes are similar to what type of software?A. Word processing softwareB. Spreadsheet softwareC. Database softwareD. Groupware
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3 Word Processing Word processing software has replaced typewriters for
producing many types of documents, including reports, letters, memos, papers, and book manuscripts
A typical word processor window displays a work area, called a workspace, that represents a blank piece of paper
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3 Word Processing
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3 Word Processing Word processing features include:
Word wrap Search and Replace Thesaurus Grammar checker Readability formula Spelling checker Spelling dictionary
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3 Word Processing
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3 Word Processing The look of your final document depends on several
formatting factors, such as page layout, paragraph style, and font Page layout refers to the physical position of each element on
a page Paragraph style includes the alignment of text within the
margins and the space between each line of text A font is a set of letters that share a unified design
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3 Word Processing
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3 Spreadsheets A spreadsheet uses rows and
columns of numbers to create a model or representation of a real solution
Spreadsheet software, such as Microsoft Excel, iWork Numbers, Google Docs Spreadsheets, or LibreOffice Calc, provides tools to create electronic spreadsheets
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3 Spreadsheets A formula tells the computer how to use the
contents of cells in calculationsCell references
Relative referenceAbsolute reference
Mathematical operatorsFunctionsAutomatic recalculations
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3 Spreadsheets
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3 Spreadsheets
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3 Databases A database is a collection of data
Database software helps you enter, find, organize, update, and report information stored in a database
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3 Databases
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3 Databases A query language such as SQL (Structured Query
Language) provides a set of commands for locating and manipulating data Natural language query Keyword search Query by example
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3 Presentations Presentation software supplies the tools for combining text,
photos, clip art, graphs, animations, and sound into a series of electronic slides that can be shown on a computer screen or projector
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3 Section C: Installing Software and Upgrades
Web Apps Mobile Apps Local Applications Portable Software Software Upgrades and Updates Uninstalling Software
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3 Question 032300 Suppose that you’re looking for software to
convert a YouTube video into a format you can use with Windows Media Player or iMovie. You don’t want to bother downloading or installing any software on your computer. What should you look for? A. A Web appB. Open source softwareC. A .zip fileD. A portable app
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3 Web Apps Software installation is a process that places a program into
a computer so that it can be run or executed A Web application, or Web App, is software that is accessed
with a Web browser Example of cloud computing Many are associated with consumer sites Most require no installation at all on your local computer or handheld
device
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3 Web Apps
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3 Mobile Apps A mobile app is designed for a handheld device, such as a
smartphone, tablet computer, or enhanced media player Most handheld devices can use both Web apps and mobile
apps Mobile apps can be purchased from an app store
Apple App Store Android Market
Apps are available from other sources, but using them requires an unauthorized change to the device’s software called a jailbreak
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3 Mobile Apps
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3 Local Applications
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3 Local Applications Most local applications contain a setup program that guides
you through the installation process At least one of the files included in a software package is an
executable file designed to be started by users or automatically launched by the operating system
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3 Local Applications
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3 Local Applications
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3 Portable Software 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
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3 Portable Software
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3 Software Upgrades and Updates
Periodically, software publishers replace older versions of a software product with a new version that’s sometimes referred to as a software upgrade
A software update is a small section of program code that replaces part of the software you currently have installed Service packs
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3 Software Upgrades and Updates
Updates are usually available online for registered software Automatic Update option Always install updates and service packs when they become
available Many software publishers require users to type in a
validation code to complete an upgrade
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3 Uninstalling Software Uninstall routines delete the software’s files from the
various folders on your computer’s hard disk
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3 Section D: Buying Software
Consumer Basics Software Copyrights and Licenses
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3 Question 032400 Suppose you purchase a new computer
and it comes with Microsoft Office installed. After using this software for 30 days, it displays a message indicating that to keep using it, you will have to pay. This software is an example of all of the following EXCEPT:A. Proprietary softwareB. Open source softwareC. Commercial softwareD. Demoware
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3 Consumer Basics Most operating systems
include a handful of small applications and a good variety of useful utility software
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3 Consumer Basics System requirements specify the operating system and
minimum hardware capacities necessary for a software product to work correctly
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3 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 license Site license Multiple-user Concurrent-use license Shrink-wrap license
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3 Software Copyrights and Licenses
EULA (End-User License Agreement)
Different types of software licenses Public domain Proprietary Commercial software Demoware Shareware Open source BSD GPL
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3 Software Copyrights and Licenses
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3 Software Copyrights and Licenses
Freeware is copyrighted software that is available for free Product activation is a means of protecting software from
illegal copying by requiring users to enter a product key or activation code before the software can be used A hash value is a unique number derived from encoding one or more
data sets, such as names, serial numbers, and validation codes
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3 Section E: Security Software Security Software Basics Security Suites Antivirus Modules
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3 Question 032500 Let’s assume that you have antivirus
software installed on your computer and it is up to date. You can trust it to do a pretty good job of protecting your computer from viruses and:A. Bots, worms, Trojans, keyloggers, and rootkitsB. RATs, spoofs, and defective Web appsC. Operating system security holesD. Fake e-commerce sites
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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
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3 Security Software Basics Computer virus Computer worm
Mass-mailing worm
Trojan horse Remote Access Trojan (RAT)
Bot Spider Botnet
Spyware
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3 Security Software Basics
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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 email message containing dire warnings about a supposedly new virus on the loose
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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
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3 Security Suites
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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
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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
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3 What Do You Think? 033100 Do you believe that software piracy is a serious
issue? A. Yes B. No C. Not sure
033200 Do you know of any instances of software piracy? A. Yes B. No C. Not sure
033300 Do you think that most software pirates understand that they are doing something illegal? A. Yes B. No C. Not sure
033400 Should software publishers try to adjust software pricing for local markets? A. Yes B. No C. Not sure
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Computer Concepts 2013
Chapter 3 Complete