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Amwoga Khalwale LED (Light Emitting Diode) A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. Early LEDs produced only red light, but modern LEDs can produce several different colors including red, green and blue … Read more
What Is Coining? Metal coining is a forging process by which very fine and intricate details can be created on the surface of a workpiece. Coining may be used to control surface quality and detail on parts. Metal coining is often a finishing process for manufactured products. This is a flashless, precision forging operation that … Read more
What Is Length? In geometric measurement, length is the most extended dimension of an object. It is used to quantify distance from one point to another and is the longest in the three dimensions of an object. In the International System of Quantities, length is a quantity with dimension distance. In most systems of measurement … Read more
What Is A Covalent Bond? A covalent bond also referred to as a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is … Read more
What Are Combinational Circuit (CC)? Combinational circuits are circuits made up of inputs, outputs and two or more logic gates. A logic gate is a basic building block of any electronic circuit. The circuits have no memory, timing or feedback loops, there operation is instantaneous. A combination logic circuit performs an operation assigned logically by … Read more
What Is Fork ( )? Fork is a function in UNIX operating system that is used to generate a duplicate of particular process by creating two simultaneous executing processes of a program. These two processes are typically called the ‘’parent’’ and ‘’child’’ processes. They use multitasking protocols to share system resources. When fork creates a … Read more
Memory allocation can be described as a process of assigning the physical or the virtual memory address space to a program (its instructions and data). The two basic methods of memory allocation are: Static Memory Allocation Dynamic Memory Allocation What Is Static Memory Allocation? Static memory allocation is the allocation of memory at compile time, … Read more
Conduction, convection and radiation are the three major ways in which thermal energy can be transferred from one object/substance to another or from a system to its surroundings. Both conduction and convection requires matter to transfer heat. However, if there is a temperature difference between two systems heat will always find a way to transfer … Read more
What Is A Resistor? A resistor is a passive two-terminal electrical component with the primary function of limiting the flow of current in a circuit, a function that is key to the operation of most circuits. They are typically constructed of metal wire or carbon and engineered to maintain a stable resistance value over a … Read more
What Is Substitution Reaction? A substitution reaction is also referred to as a single displacement reaction, single substitution reaction or single replacement reaction. Substitution reaction can be described as a reaction in which the functional group of one chemical compound is substituted by another group or it is a reaction which involves the replacement of … Read more