What is Mixture? A mixture consists of more than one element or compound. The components of a mixture can be separated by physical methods. A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more
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Introduction Matter is defined as anything that occupies space and has mass. The particles of matter could be atoms, molecules or ions. It is important to note that the particles that make up all matter vary in their subatomic composition. The number and arrangement of an atom’s particles (neutrons, protons, and electrons) determines the properties of
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Definition of Computer Output Devices Computer Output Devices are various types of computer hardware which uses data and commands from the computer itself to perform assigned tasks. In other words, the output devices facilitate data processing by carrying out commands given by the computer. They convert electronically-generated information into human-readable forms. Types of Computer Output Devices There are three
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History of Computer The development of the first counting device has been dated to ancient times, a man called abacus used a counting device about 3000 years ago and from this time and man has continued to improve. Ancient methods of counting were through the use of fingers, stones, sticks and grains. The history of
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Concept Of Culturing Culturing simply involves the techniques of growing micro-organisms in special media in the laboratory. It involves the making of sterile medium, inoculating, incubating and examining micro-organisms. By this means, micro-organism characteristics such as colour, pattern of growth and appearance can be seen. Culture of micro-organisms can be grown from water, air,
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Rounding off Numbers To ’round off’ or ‘approximate’ a number to a desired degree of accuracy, we- a. round the number up if the next digit is 5 or more b. round the number down if the next digit is less than 5. We represent approximately equal to as and approximately as ‘~’ Examples: 1. 73 is close to
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What are Computer Viruses? Computer viruses are small software programs that are designed to spread from one computer to another and to interfere with computer operation. A virus might corrupt or delete data on your computer, use your e-mail program to spread itself to other computers, or even erase everything on your hard disk. Computer
Introduction to Application Software Application software is any tool that functions and is operated by the means of a computer with the purpose of supporting or improving the software user’s work. It is used for the implementation of the computer user’s work. Types of Application Software It is divided into two which are (i) User
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Provision for Bad Debt The provision for bad debts has to do with making room in the balance sheet account for instances when a client is unable to redeem their debt. Also known as Allowance for Bad Debts, it makes provision for Bad Debts as a contra asset account (i.e., an asset account with a
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What is Depreciation of Fixed Assets? Depreciation is the systematic reduction in the recorded cost of a fixed asset. Examples of fixed assets that can be depreciated are buildings, furniture, leasehold improvements, and office equipment. The only exception is land, which is not depreciated (since land is not depleted over time, with the exception of
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