INTRODUCTION Information systems are important for the success of any modern business for organization. Every many information systems are being […]
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Category: Data Processing
Free Data Processing online learning lesson notes and videos for Secondary school and High school students. The lesson notes, videos and interactive slideshows are built on curriculum that is designed to meet national and international O’ Level standard for Senior High School or Senior Secondary school students (SS1, SS2, SS3 or SHS1, SH2, SH3) and Grade 9, Grade 10, Grade 11 and Grade 12 students.
Free online lesson notes and videos for the following exam preparations: WAEC, JAMB, Cambridge O’Level, NECO, GCE, British IGSCE, KCSCE, United States and Canada High School Exam preparations, etc.
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Word Processing
What is word processing? Word processing is the use of computer software to create, edit. View, store, retrieve and print […]
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Handling Computer Files
BASIC OPERATIONS OF COMPUTER FILES: Create: Creating a file with a given name. Delete: Deleting a file that are unwanted. […]
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Concept Of Computer Files
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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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ENTITY – RELATIONSHIP MODELS
Entity-Relationship is a graphical representation of entities and their relationships to each other. Entity relationship diagrams (ERDs) illustrate the logical […]
A database management system is a collection of computer software that enables users to define, create and maintain a database. […]
Creating Forms Forms allows you to enter, edit or display data. They are based on tables. With forms, you can […]