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Data Processing Notes

Concept Of Computer Files

Computer files: Computer files are the most basic unit of data that users can store on a disk. Every program, […]

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Data Processing Notes

Computer Data Conversion

Register This is a special high-speed storage area within the CPU. All data must be represented in a register before […]

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Data Processing Notes

SS2 2nd Term Data Processing scheme of work

SUBJECT: DATA PROCESSING                                2ND TERM                             CLASS: SSS2 SCHEME OF WORK WEEK S                                               TOPICS                                               1.                                             REVIEW OF FIRST […]

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Data Processing Notes

ENTITY – RELATIONSHIP MODELS

Entity-Relationship is a graphical representation of entities and their relationships to each other. Entity relationship diagrams (ERDs) illustrate the logical […]

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Data Processing Notes

Normal Form and Key in Database Normalization

A database management system is a collection of computer software that enables users to define, create and maintain a database. […]

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Data Processing Notes

Significance of a Data model and Standard Data Model

Significance of Data Model Data model is a great communication tool because it facilitates interaction and communication between the designers, […]

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Data Processing Notes

Database Modelling: Creating a form, Query and Report

Creating Forms Forms allows you to enter, edit or display data. They are based on tables. With forms, you can […]

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Data Processing Notes

Database packages in Data modelling

Database packages are used to design a database in a computer. Example of a common database package is Microsoft Access. […]

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Data Processing Notes

Types of Data Modelling

TYPES OF DATA MODELLING Flat Model: The flat Model (or Table) model consists of a single, two-dimensional array of data […]

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Data Processing Notes

Data Models: Definition and concepts

Definition of Data Model Concept of Data Modelling INTRODUCTION TO DATA MODELLING The main effort during the system development life […]