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Showing posts from August, 2022

RESISTANCE (To something..,)

Resistance to something..,   In general, we usually come across the word "The Resistance," which means opposite or against something. In electrical and electronics terminology, the same word is termed "Electrical Resistance," which means against the electric current. Yes, it does oppose the flow of electrons in a conductor. We all know that when a conducting material is subjected to a force called an electromotive force (e.m.f.), the free electrons present in the material come into motion in a particular direction, and that flow causes the electric current to be produced in that particular conductor. While the motion and direction of the electrons depend upon the e.m.f. applied, for example, a material with high resistance opposes the bulk flow of electrons such that the current produced in the conductor will be less. According to Ohm's law, the e.m.f. is directly proportional to the current produced. If the low e.m.f. is applied, it's obvious that less cu...

Evolution of a computer processor

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A processor is the core part of a computer that fetches, computes, and executes instructions and is popularly called a "central processing unit" (CPU). The processor is the hardware architecture of a computer that performs basic arithmetic, logical, control, and input or output (i/o) operations. These instructions are specified by the users sometimes, and there are some predefined programmes that run on their own. These instructions are used to drive the computers. Briefing the background of computer processors, it all started with the discovery of silicon (Si) by Baron Jons Jackob Berzelius, which is the basic component of the processor. Later, unlike the electrical switches, electronic switches (logic gates) were invented to perform logical operations when one or more binary inputs would produce a single binary output. Later, John Bardeen, Walter Brattain, and William Shockley invented the first transistor at the Bell Laboratories, a semiconductor device which amplifies...