Zero is a unique number that means “empty space” and that which represents a number and its use for computation. It was conceived from the Hindus from India. The earliest recorded evidence was found on the Gvalior inscription‚ however‚ the zero we are accustomed to today‚ came much later. Zero has two basic uses: to mean empty space or to represent a number used for computation. It is especially important in positional notations. Positional notations‚ is a numerical system in which each position
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Assignment # 01 History Of Computers Introduction To Computer Submitted by Irrum Fatima 2013-B.env-029 2nd Semester Environmental Sciences Submitted to Madiha Wahid Department of Environmental Sciences FJWU – Rawalpindi Computers Computers are the Electronic Device Have Storing Capabilities Have Processing Capabilities Give outputs against inputs Give instructions to carry out operations and then store in memories Computers made our lives easy and reliable. Now a day‚ computer becomes necessary
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UTT MATH1002 Weeks 3&4 Notes Systems of ODEs First-order linear equations with constant coefficients [pic] [pic] Let [pic] [pic] Taking Laplace transforms of (1) and (2) [pic] [pic] From (3) and (4) [pic] [pic] We solve this system algebraically for [pic]and [pic] and obtain [pic] by taking inverse transforms. Example [pic] [pic] [pic] We have [pic] [pic] [pic] From (5) and (6) [pic] [pic] [pic]
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Atom History Essay An Atom is a basic unit of matter that consists of a dense‚ central nucleus surrounded by a cloud of negatively charged electrons. The Atom was theorized by a man named Democritus of Abdera‚ Thrace in between c.a 460 BC - ca. 370 B.C. Atom is derived from the Greek word “atomos” ‚ which means to be uncuttable. He had a theory that everything is composed of “atoms”‚ which he believed that these minuscule objects are indivisible‚ indestructible and have and always been in motion
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HISTORY OF COMPUTER THE PRE-MECHANICAL AGE: 3000 B.C. – 1450 A.D. 1. Writing and Alphabets – Communication First development of signs corresponding to spoken sounds‚ instead of pictures‚ to express words. Around 2000 B.C.‚ Phoenicians created symbols that expressed single syllables and consonants (the first true alphabet) The Greeks later adopted the Phoenician alphabet and added vowels; the Romans gave the letters Latin names to create the alphabet we use today. 2. Paper
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Equations of Motion* When an object (with initial velocity u) moves in a straight line with constant acceleration a‚ its displacement s from its starting point‚ and its final velocity v‚ change with time t. Note that both v and u are instantaneous velocities. The following equations tell us how these quantities are related: v = final velocity u = initial velocity a = acceleration s= displacement (not distance) t = time Procedure for solving problems using equations of motion
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Early History of Electric Power Date Event Pictures 1800-1819 Early electric experiments were performed with DC. In 1800‚ Alessandro Volta published a description of a silver/zinc battery‚ acknowledging that he did not know how it worked. In 1807‚ Humphry Davy constructed a practical battery (the picture will be immediately familiar to anyone who works with UPS systems)‚ and demonstrated both incandescent and arc light. • Volta’s famous bi-metalic frog twitch (I did this one myself as a boy..
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best times of your life. The memories are normally reminders of good times and the joys of childhood. But for some people‚ their childhoods are looked back on in sadness and remorse. In the poems "Looking For Dad"‚ "My Grandmother" and "The Sick Equation"‚ the narrators explore the darker sides of childhood. Each poem tells a different story‚ but are all about tragic memories from shattered childhoods that will scar forever. "Looking For Dad" is about a boy who’s father leaves home. I think the
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------------------------------------------------- History Predecessors The Babylonians sometime in 2000–1600 BC may have invented the quarter square multiplication algorithm to multiply two numbers using only addition‚ subtraction and a table of squares. However it could not be used for division without an additional table of reciprocals. Large tables of quarter squares were used to simplify the accurate multiplication of large numbers from 1817 onwards until this was superseded by the use of
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would be put to a halt without it. Astronomy is one of the oldest forms of Physical Science‚ with its roots dating back as far as thousands‚ even millions of years ago. Astronomy contributed a lot to every civilization; it assisted people throughout history‚ it made up religion to most‚ while it also helped people determine when the correct time to begin planting. The beginning of Astronomy didn’t exactly begin with a telescope. It was millions of years before Sir Isaac Newton or Galileo Galilei‚ It
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