Database packages are used to design a database in a computer. Example of a common database package is Microsoft Access. […]
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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Types of Data Modelling
History of computing Abacus – Napier’s Bones – Slide Rule – Schickard’s Calculating Clock – Pascal’s calculator – Leibnitz Multiplier […]
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Computer Operating systems
An operating system, or “OS”, is software that communicates with the hardware and allows other programs to run. An operating […]
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Computer ethics
Ethics are set of moral principles that govern the behavior of a group or an individual. Therefore, computer ethics are […]
Types of Information Transmission, namely: Satellite Wireless Cable SATELLITE: In satellite communication, signal transferring between the sender and receiver is […]
In 1894, the young Italian inventor Guglielmo Marconi began working on the idea of building a commercial wireless telegraphy system […]
INTRODUCTION Information is an important tool for decision making in any organization. The type of information gotten and the method […]