Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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Tomorrow’s Technology and You textbook. Chapter 1 1. What is the most important difference between a computer and a calculator? [RQ‚ no. 2] Calculators perform operations one at a time‚ while computers can process a sequence of operations using provided instructions. A typical calculator requires many interactions to perform a computation‚ while a computer takes a set of instructions. 2. How are computers today similar to those from World War II? How are they different? [RQ‚ no. 3] 3. The way people
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Computer programming (often shortened to programming) is a process that leads from an original formulation of a computing problem to executable programs. It involves activities such as analysis‚ understanding‚ thinking‚ and generically solving such problems resulting in an algorithm‚ verification of requirements of the algorithm including its correctness and its resource consumption‚ implementation (commonly referred to as coding[1][2]) of the algorithm in a target programming language. Source code is
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Improving System Performance: The Evolution of Concepts Designed to Optimize System Performance Over the Past 25 Years CMIS 310 UMUC Abstract Since the invention of the first computer‚ engineers have been conceptualizing and implementing ways to optimize system performance. The last 25 years have seen a rapid evolution of many of these concepts‚ particularly cache memory‚ virtual memory‚ pipelining‚ and reduced set instruction computing (RISC). Individual each one of these concepts has helped
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Computer Keyboard (1874 – 1982) Although the first Computer Keyboard came out in 1964‚ it was a long evolution process from 1874-1982‚ to form the modern computer keyboard as we know it... One of the most common electronic input devices available nowadays is the “computer keyboard”. The “keyboard” enters instructions and data into the “memory” of the “computer”. “Keyboards” are used to “program”‚ operate and manage files and programs on a computer “interface”. This is accomplished by users
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Prosthetic Devices A prosthetic is an artificial body part that replaces a missing or non-functioning body part such as an arm‚ heart or breast. Humans have been making prosthetic limbs since the Ancient Egyptians to replace limbs lost during battle‚ work or just by mistake. Evidence has been found of Egyptians trying to replicate toes with copper ones. Although these were very impractical as they were solid and so were mostly for aesthetic purposes. In the 1400s‚ prosthetics arms made out of
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Computer was invented by Charles Babbage in 1822. The computer is the most wonderful gift of science to the modern man. The computer can do all the works of man. Thus‚ after the invention of computer‚ the gap between man and machine has been bridged up.The dictionary meaning of the word "Computer" is an electronic calculating machine. Though a machine‚ it contains and provides innumerable informations. It may seem strange‚ but it is true that the memory and intelligence of a computer can be greater
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Forman 28th March‚ 2012 ENG 102 IJC Effects of Computers on Society Discoveries and invention of devices are always welcomed till we‚ humans find a way to abuse its benefits and be adversely affected by it. Computers have influenced all sphere of modern society in a big way by the way people keep in touch with each other‚ the way people entertain themselves using computer and the way people buy and sell things. In todays present‚ although computers have changed in many different ways all activities
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HISTORY OF COMPUTERS Historical records will tell us that man has invented three types of devices to assist him in calculating and processing data. These devices could be classified into: a) Manual-mechanical b) Electromechanical c) Electronic 2000 BC - MECHANICAL COMPUTER THE ABACUS * Computations are done by sliding beads on a wire arranged on a tray. Came from the Greek word abax meaning flat surface John Napier(1617) – Logs and Bones * a Scotsman‚ invented
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The human mind is easily distracted! You can either be the cause of these distractions or other stimuli will be the cause but rest assured peo- ple WILL BE distracted because the human mind is gullible. The human mind responds quickly to these three forms of stimuli •Sex •Humor •FEAR But the greatest of them all is FEAR! BTW – on the positive side we have faith‚ hope‚ love‚ but the greatest of these is LOVE. Fear usually takes the form of what is called “Scarcity Thought” You are
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