Assignment No 1
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This document outlines 4 questions for an assignment on PC hardware: 1) Defines an operating system and why computers need one, listing some current examples. 2) Describes the importance of USB ports. 3) Explains the three stages of computing. 4) Discusses the function of a computer's power supply unit and lists different power connectors.
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- The purposes of using a database including storing, finding, and analyzing information
D I T211 Chapter 1 1
D I T211 Chapter 1 1askme The document introduces databases and their components. It defines key terms like data, information, database, DBMS, and discusses the evolution from file-based systems to database systems. The main advantages of database systems are minimal data redundancy, sharing of data across systems, improved data consistency when values are stored and updated in one place.
D I T211 Chapter 3
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3. The document describes the different types of relationships and provides examples of how to construct ER diagrams.
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