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Computer Concepts 5th Edition Parsons/Oja Page 110 CHAPTER 3 Software Basics Section A PARSONS/OJA Computer Software.

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Presentation on theme: "Computer Concepts 5th Edition Parsons/Oja Page 110 CHAPTER 3 Software Basics Section A PARSONS/OJA Computer Software."— Presentation transcript:

1 Computer Concepts 5th Edition Parsons/Oja Page 110 CHAPTER 3 Software Basics Section A PARSONS/OJA Computer Software

2 Computer Concepts 5th Edition Parsons/Oja Page 112 Section A Chapter 3 Software Basics Exactly what is software?  Software: instructions that direct the computer to accomplish a task.

3 Computer Concepts 5th Edition Parsons/Oja Page 115 Section A Chapter 3 Software Basics How does a high-level language relate to the microprocessor’s instruction set?  A compiler translates all of the instructions in a program as a single batch  The resulting machine language instructions are called the object code

4 Computer Concepts 5th Edition Parsons/Oja Page 116 Section A Chapter 3 Software Basics How does a high-level language relate to the microprocessor’s instruction set?  An alternative to a compiler is an interpreter, that converts one instruction at a time while program is running  Scripts JavaScript VBScript Click to start

5 Computer Concepts 5th Edition Parsons/Oja Page Section A Chapter 3 Software Basics Application Software and System Software: How is software categorized?  Software is categorized as either application software or system software  Application software is designed to be used for a purpose such as drawing designs, creating documents, etc.  System software is designed to help the computer carry out the basic operating functions Operating systems, utilities, and drivers

6 Computer Concepts 5th Edition Parsons/Oja Page 117 Section A Chapter 3 Software Basics How is software categorized?

7 Computer Concepts 5th Edition Parsons/Oja Page 118 Section B Chapter 3 Personal Computer Operating Systems Operating System Overview: What does an operating system do?  An operating system (OS) is the master controller for all of the activities that take place within a computer.  Microsoft Windows XP, Mac OS, Linux, UNIX  The operating system also interacts with the next functional layer called application software.

8 Computer Concepts 5th Edition Parsons/Oja Page 118 Section B Chapter 3 Personal Computer Operating Systems What does an operating system do?

9 Computer Concepts 5th Edition Parsons/Oja Page 119 Section B Chapter 3 Personal Computer Operating Systems What does an operating system do?  An operating system manages resources (any component that is required to perform work)  An operating system also influences the “look and feel” of your software

10 Computer Concepts 5th Edition Parsons/Oja Page 119 Section B Chapter 3 Personal Computer Operating Systems Why does an operating system need to manage memory?  The OS must ensure that instructions and data don’t “leak” into an area allocated to another program  If it fails, data can get corrupted, programs can “crash” and your computer will display error messages  Should you leave all the programs you have opened running until you turn off the computer???

11 Computer Concepts 5th Edition Parsons/Oja Page 121 Section B Chapter 3 Personal Computer Operating Systems Where is the operating system?  The OS’s small bootstrap program resides in ROM and provides the instructions to load the core parts into memory when system boots  This component is called the kernel

12 Computer Concepts 5th Edition Parsons/Oja Page 130 Section C Chapter 3 Application Software Microsoft Works, Microsoft Office XP and Microsoft Office XP Pro  Microsoft Office XP  Common features Menus, wizards, etc. Reduces learning curve  Pro: includes Access  Educational version  Microsoft Works  “Lite” version of Microsoft Office XP

13 Computer Concepts 5th Edition Parsons/Oja Page 130 Section C Chapter 3 Application Software Document production software  How does Autocorrect work????

14 Computer Concepts 5th Edition Parsons/Oja Page 133 Section C Chapter 3 Application Software Spreadsheet Software: What is a spreadsheet?  Spreadsheet - numerical model or representation of a real situation  To use spreadsheet software, you:  According to textbook, enter numbers.  You should enter ….  Spreadsheet software is particularly useful for what-if analysis

15 Computer Concepts 5th Edition Parsons/Oja Page 135 Section C Chapter 3 Application Software What happens when I modify a worksheet?

16 Computer Concepts 5th Edition Parsons/Oja Page 137 Section C Chapter 3 Application Software Data Management Software: What is data management software?  Data management software helps you to store, find, organize, update, and report information  File management software  Database management software

17 Computer Concepts 5th Edition Parsons/Oja Page 137 Section C Chapter 3 Application Software What’s the difference between file management software and database management software?

18 Computer Concepts 5th Edition Parsons/Oja Page 139 Section C Chapter 3 Application Software How do I use data management software?  A file structure is somewhat like a fill-in form that contains a list of fields and their data types Click to start

19 Computer Concepts 5th Edition Parsons/Oja Page 140 Section C Chapter 3 Application Software How do I locate specific data?  Information that needs to be accessed quickly is usually stored as a structured database.  stored in a field  A query by example (QBE) helps users search structured databases.

20 Computer Concepts 5th Edition Parsons/Oja Page 143 Section C Chapter 3 Application Software Music Software: Why would I need music software?  Audio editing software – lets you make your own digital voice and music recording  MP3: compresses audio files using algorithms  MP3 Player  CD ripper  MP3 encoding software  Ear training software  Notation software  Computer-aided software  Midi sequencing software

21 Computer Concepts 5th Edition Parsons/Oja Page 145 Section C Chapter 3 Application Software Entertainment Software: What’s the best-selling entertainment software?  Over $6 billion of computer and video games are sold each year in the U.S. alone  97% by people 18 and under  13% by people over 50  43% by women

22 Computer Concepts 5th Edition Parsons/Oja Page 148 Section D Chapter 3 Software Installation and Copyrights Installation Basics: What’s included in a typical software package?  The key ingredients necessary to install new software are the files that contain the programs, support modules, and data modules  Usually supplied on distribution disks

23 Computer Concepts 5th Edition Parsons/Oja Page 148 Section D Chapter 3 Software Installation and Copyrights How do I know if a software program will work on my computer?  System requirements specify the operating system and minimum hardware requirements for a software product to work correctly  Is it advisable to have the minimum system requirements?

24 Computer Concepts 5th Edition Parsons/Oja Page 150 Section D Chapter 3 Software Installation and Copyrights Installing from a Distribution Disk or CD: How do I install software from a disk or CD?  Should you always select a full installation?  A setup program guides you through the installation process  Following the program will make installation easy

25 Computer Concepts 5th Edition Parsons/Oja Page 151 Section D Chapter 3 Software Installation and Copyrights Is installing a software upgrade different from installing a full version?  Installing an upgrade is similar to installing a full version  Update provides a setup file that checks to make sure that your computer contains a valid version of software to upgrade and will guide you through the upgrade process  Should you use the automatic update feature of Windows XP?

26 Computer Concepts 5th Edition Parsons/Oja Page 152 Section D Chapter 3 Software Installation and Copyrights Uninstalling Software: How do I get rid of software?  Uninstall routine deletes the software’s files

27 Computer Concepts 5th Edition Parsons/Oja Page 153 Section D Chapter 3 Software Installation and Copyrights Software Copyrights: Is it legal to copy software?  A copyright is a form of legal protection  Purchaser has right to copy software to a computer’s hard disk in order to install it  Purchaser can make a backup copy  Purchaser is allowed to copy and distribute sections of a software program for use in critical reviews and teaching  Most software displays a copyright notice

28 Computer Concepts 5th Edition Parsons/Oja Page 153 Section D Chapter 3 Software Installation and Copyrights Software Licenses: What is a software license?  A software license is a legal contract that defines the ways in which you may use a computer program  A shrink-wrap license goes into effect as soon as you open the packaging

29 Computer Concepts 5th Edition Parsons/Oja Page Section D Chapter 3 Software Installation and Copyrights Are all software licenses similar?  Commercial software – typically sold in computers or a web site  Shareware – copyrighted software that you “try before you buy”  Freeware – copyrighted software available for free  Public domain software – not copyrighted, and in public domain

30 Computer Concepts 5th Edition Parsons/Oja Page Section D Chapter 3 Software Installation and Copyrights Pirated software  illegal copies of software  U.S.: 28% of all software  China, Indonesia and other third world countries: 90%  Internet has increased problem of pirated software  Encryption keys  July 4th


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