Chapter 13A - Creating computer programs. This chapter define the term computer program, describe the use of flowcharts and pseudocode in programming, identify two ways in which a program can work toward a solution, differentiate the two main approaches to computer programming, list and describe three elements of object-oriented programming. | McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 13A Creating Computer Programs What Is a Computer Program? Computer programs Also called software Are a list of instructions Instructions are called code CPU performs the instructions Three types Operating system Utility Application 13A- Teaching tip Chapters 7 and 8 cover software in great detail. Software Is Stored In Many Files Executable files Contain the instructions for the CPU Have extensions of .exe, or .com 13A- Teaching tip Open a folder and demonstrate each file. Show what happens when you open each file type. Software Is Stored In Many Files Dynamic link libraries Partial executable file Used to support executable files Have .dll extensions 13A- Software Is Stored In Many Files Initialization files Contain configuration settings for software Have a .ini extension Modern programs use the registry 13A- Software Is Stored In Many Files Help files Contain information about the software Information is indexed and searchable Provides an online manual Have a .chm or .hlp extension 13A- Teaching tip Most Windows programs provide help by hitting the Help menu or pressing F1. This will open the Windows Help program and display the help appropriate to the application that launched the help. Software Is Stored In Many Files Batch files Used to automate tasks Hold a series of OS commands Have a .bat extension 13A- Hardware/Software Interaction Program execution Software executes at the CPU level Code to play a sound Code generates an interrupt CPU tells the sound card to play Sound card plays the file Programmer creates the code 13A- Discussion point Page 501 states “Computers are the reason people purchase computers”. This is an excellent quote. Have students list all the things that they do with computers. When done, point out that the majority of items are handled by a software application. Hardware/Software Interaction . | McGraw-Hill Technology Education Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 13A Creating Computer Programs What Is a Computer Program? Computer programs Also called software Are a list of instructions Instructions are called code CPU performs the instructions Three types Operating system Utility Application 13A- Teaching tip Chapters 7 and 8 cover software in great detail. Software Is Stored In Many Files Executable files Contain the instructions for the CPU Have extensions of .exe, or .com 13A- Teaching tip Open a folder and demonstrate each file. Show what happens when you open each file type. Software Is Stored In Many Files Dynamic link libraries Partial executable file Used to support executable files Have .dll extensions 13A- Software Is Stored In Many Files Initialization files Contain configuration settings for software Have a .ini extension Modern programs use the registry 13A- Software Is Stored In Many Files Help files .
