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Showing posts with the label THEORITICAL ALGEBRA

TOPOLOGIES OF COMMUNICATING MACHINES

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TYPES OF NETWORK TOPOLOGY NETWORK TOPOLOGY IS THE SCHEMATIC DESCRIPTION OF NETWORK ARRANGEMENT, CONNECTING VARIOUS NODES (SENDER AND RECEIVER) THROUGH LINES OF CONNECTION.   BUS TOPOLOGY BUS TOPOLOGY IS A NETWORK TYPE IN WHICH EVERY COMPUTER AND NETWORK DEVICE IS CONNECTED TO A SINGLE CABLE.   WHEN IT HAS EXACTLY TWO END POINTS, THEN IT IS CALLED LINEAR BUS TOPOLOGY.   FEATURE OF BUS TOPOLOGY 1.        IT TRANSMITS DATA ONLY IN ONE DIRECTION 2.        EVERY DEVICE IS CONNECTED TO A SINGLE CABLE.   ADVANTAGES OF BUS TOPOLOGY 1.        IT IS COST EFFECTIVE CABLE REQUIRED IS LEAST COMPARED TO OTHER NETWORK TOPOLOGY. 2.        USED IN SMALL NETWORKS 3.        IT IS EASY TO UNDERSTAND 4.        EASY TO EXPAND JOINING TWO CABLES TOGETHER.   DISADVANTAGES OF BUS TOPOLOGY 1.        CABLE FAILS THEN WHOLE NETWORK FAILS. 2.        IF A NETWORK TRAFFIC IS HEAVY OR NODES ARE MORE THE PERFORMANCE OF THE NETWORK DECREASES. 3.        CABLE HAS LIMITED LENGTH

CODES OF LANGUAGE IN COMPUTER SYSTEM. WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?

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  CODES OF LANGUAGE IN COMPUTER SYSTEM.   WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?   There are many codes in computer system which may remain unnoticed by many computer geeks and nerds.   I also first didn’t see it but I am going to share it because these are important codes and used by many computer hardware developers, vendors and computer software developers.    They are mostly understood by ELECTRONICS AND ELECTRICAL ENGINEERING geeks or nerds.   They are as under : ·         ERROR DETECTION CODES ·         ALPHANUMERIC CODES ·          REFTLECTED CODES First we will discuss something about ERROR DETECTION CODES.                                                                                                              ERROR DETECTION CODES:   Binary information , be it pulse modulated signals or digital computer input or output, may be transmitted though some form of communication medium or electrical wires or radio waves.   Any external noi

IS DIGITAL COMPUTERS ARE VALUABLE?

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DIGITAL COMPUTERS Today computers are used extensively in every day life.  It is used in basic as well as industrial, scientific and commercial purposes.  Our space program would not have been well developed without the real time monitoring of the machine of the spacecraft which was going to land on moon or any other planet of the scheduled program or launching of satellites on the orbit of earth. This is the scientific purpose i told you about while it has commercial purposes.  Like automatic data processing which the business enterprise uses. It has many works in educational purposes for example multiple choice question answers can be checked without any error and then the results can be printed out automatically with the help of the printer which is connected to the digital computer.   Digital computer are also used in air traffic control to control the aviation industry to help them control the planes by sending them data about the distance between the planes and t

LOGIC OF COMPUTERS

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LOGIC OF COMPUTER IN PAPER AS WELL AS PRACTICAL USE We always use logic in every day matters, so do the machines.   But we were taught by experiences we count and the people we trust and these things matters most because it will help in dark times.   But to make the machine understand the logic is very hefty work. But this is certainly not impossible.   In order to understand logic we use integrated circuits.   But to do this we need to design the integrated circuits on paper.   This requires certain rules of algebra.   This I am going talk about the rule of an algebra called the duality principal. It states that every algebraic expression deducible from the postulates of Boolean algebra remains valid if the operators and identity elements are interchanged.   In a two value Boolean algebra, the identity elements and the elements of the set B are same 1 and 0.   The duality principal has many applications.   If the dual of an algebraic expression is desired, we simply

THEORITICAL ALGEBRA IN COMPUTERS

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ALGEBRA IN COMPUTERS Algebra is a subject in which the problem of the sum is solved with the help of letters (I mean the letters of English language as well as Greek language).  It is mostly used by the mathematicians, engineers, scientist as well as businessmen to solve any problem of the world.  Algebra is very important in many science as well as commerce studies.  So we are going to dig deep in algebra used in computers. We will consider Boolean algebra as it is used by the computers to solve real life problems.  So let us begin. Boolean algebra, like any other     mathematical system , may be with a set of elements , a set of operators and a number of unproved axioms or postulates.    A set of elements is any collection of objects having a common property.  If S is a set and x is an element of that set the x€ S denotes that x is an element of that set.   A set with de-numberable (means a small number) number of elements is specified by braces:  A={1, 2, 3, 4} tha