1.0 Introduction
1.1 Background of Study
One of the major objectives of most business firms, individuals and government agencies in installation of computer is to assist them in data processing, counting, information storage and to eliminate manual interference between data, input, information and output. in the past, counting and other simple arithmetical operations were performed by the use of parts of the human body such as the fingers and toes. Also used were objects like stones, sticks and drawing lines and works on the surfaces.
However, when the volume of data to be processed increased and also to need for faster processing and more accurate results become imperative, then aids or tools to be used for computing because necessary, hence the need for mechanically processing equipment, otherwise known as computers.
The earliest mechanical and to calculation used in China and other parts of the world e.g ABACUS or BEAD FRAME was crude, time — consuming and to worsen the situation.
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