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Lecture Introduction to computing - Lecture 28

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The contents of this chapter include all of the following: Computer program differentiate between machine and assembly languages; identify and discuss the purpose of procedural programming languages, and describe the features of C and COBOL; identify and discuss the characteristics of these object-oriented programming languages and program development tools;. | CSC 101 Introduction to Computing Lecture 28 Dr. Iftikhar Azim Niaz ianiaz@comsats.edu.pk 1 1 Last Lecture Summary I Working with DBMS Creating Tables, Data Dictionary Entering, Viewing and Sorting Records Forms and Report Generator Querying a Database SQL, xBase and QBE Data Security Backup and Recovery Data Model Last Lecture Summary II Relational Databases Object Oriented Databases Types of OO databases, GIS database Multidimensional Databases Data warehouse Web Databases Common RDBMS Database Design Guidelines, Normalization Database Administration Enterprise Software Objectives Overview What Is a Computer Program? Computer programs Also called software Are a list of instructions Instructions are called code CPU executes the instructions Three types Operating system Utility Application Program 5 Teaching tip Chapters 7 and 8 cover software in great detail. Computer Program A computer program is a series of instructions that directs a computer to perform tasks Created by a programmer using a programming language – used to write instructions composed of a main module and sub modules These modules are stored as a collection of files; large programs can contain thousands of individual files, each serving a specific purpose. Some of the files contain instructions for the computer, while other files contain data Figure 131-1 6 Software Is Stored In Many Files Executable files Contain the instructions for the CPU Have extensions of .exe, or .com Dynamic link libraries Partial executable file Do not run on its own, instead, its commands are accessed by another running program Used to support executable files provide programmers with an effective way of breaking large programs into small, replaceable components makes the entire program easier to upgrade Have .dll extensions 7 Teaching tip Open a folder and demonstrate each file. Show what happens when you open each file type. Software Is Stored In Many Files Initialization files Contains configuration information, . | CSC 101 Introduction to Computing Lecture 28 Dr. Iftikhar Azim Niaz ianiaz@comsats.edu.pk 1 1 Last Lecture Summary I Working with DBMS Creating Tables, Data Dictionary Entering, Viewing and Sorting Records Forms and Report Generator Querying a Database SQL, xBase and QBE Data Security Backup and Recovery Data Model Last Lecture Summary II Relational Databases Object Oriented Databases Types of OO databases, GIS database Multidimensional Databases Data warehouse Web Databases Common RDBMS Database Design Guidelines, Normalization Database Administration Enterprise Software Objectives Overview What Is a Computer Program? Computer programs Also called software Are a list of instructions Instructions are called code CPU executes the instructions Three types Operating system Utility Application Program 5 Teaching tip Chapters 7 and 8 cover software in great detail. Computer Program A computer program is a series of instructions that directs a computer to perform tasks Created by a .

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