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	<title>In History &#187; Mathematical Problems</title>
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		<title>The Abacus</title>
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				<category><![CDATA[Inventions in History]]></category>
		<category><![CDATA[190 AD]]></category>
		<category><![CDATA[3000 BC]]></category>
		<category><![CDATA[500 BC]]></category>
		<category><![CDATA[Abacus]]></category>
		<category><![CDATA[Abacus System]]></category>
		<category><![CDATA[Addition Subtraction]]></category>
		<category><![CDATA[Analog]]></category>
		<category><![CDATA[Ancient Word]]></category>
		<category><![CDATA[Average Person]]></category>
		<category><![CDATA[Beads]]></category>
		<category><![CDATA[Calculators]]></category>
		<category><![CDATA[Chinese Abacus]]></category>
		<category><![CDATA[Dust Abacus]]></category>
		<category><![CDATA[Efficiency]]></category>
		<category><![CDATA[Egypt]]></category>
		<category><![CDATA[electric calculator]]></category>
		<category><![CDATA[greece]]></category>
		<category><![CDATA[Mankind]]></category>
		<category><![CDATA[Mathematical Problems]]></category>
		<category><![CDATA[Mesopotamia]]></category>
		<category><![CDATA[Multiplication And Division]]></category>
		<category><![CDATA[Physical Obstacles]]></category>
		<category><![CDATA[Physical Representation]]></category>
		<category><![CDATA[Place Values]]></category>
		<category><![CDATA[Stone Tools]]></category>
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The Abacus is one of mankind&#8217;s oldest machines, and certainly man&#8217;s earliest computer.
An abacus is a bead and wire  analog counting and calculating device whose earliest form appeared about 3000  BC in Mesopotamia as a sand covered board in which marks were made by finger or  stick.
The Abacus was really nothing more [...]<p><a href="http://www.in-history.com/inventions-in-history/the-abacus">The Abacus</a> is a post from: <a href="http://www.in-history.com">In History</a></p>
]]></description>
			<content:encoded><![CDATA[<p><!-- TD { 	FONT-FAMILY: Black; FONT-SIZE: 10pt } -->The Abacus is one of mankind&#8217;s oldest machines, and certainly man&#8217;s earliest computer.</p>
<p>An abacus is a bead and wire  analog counting and calculating device whose earliest form appeared about 3000  BC in Mesopotamia as a sand covered board in which marks were made by finger or  stick.</p>
<p>The Abacus was really nothing more than a physical representation of human thought. When it turned out to greatly boost the efficiency of human counting, it became widely used.</p>
<p>Humans had long been capable of counting, adding, subtracting and solving simple  and complex mathematical problems.  Stone tools and the wheel gave humankind the  ability to master physical obstacles in the environment.</p>
<h4>Where does the name abacus come from?</h4>
<p>The name abacus derives from the ancient word for &#8221; dust &#8220;.</p>
<h5>When was the abacus first used?</h5>
<p>The  abacus was first noted in History around 3000 BC.</p>
<p>It was first  used in Mesopotamia. The abacus system evolved as a grooved board and ultimately  reached its wire and bead form in Egypt by about 500 BC. The abacus was also  found in Greece and India and was in widespread use in China by 190 AD, where it  is still commonly used today. (By traditionalists, or simply by those who can&#8217;t afford a computer.)</p>
<h4>How does one use an abacus?</h4>
<p>The Chinese abacus uses 10 wires with seven beads each to represent place  values. One set of beads represents ones and others represent fives. By quickly  moving the beads, a skilled abacus user can do addition, subtraction,  multiplication and division as fast as the average person can work similar  problems on an electronic calculator.</p>
<p>Today in America it is difficult to find one, as we prefer computers, or more simple calculators to do the job of counting for us.</p>
<p><a href="http://www.in-history.com/inventions-in-history/the-abacus">The Abacus</a> is a post from: <a href="http://www.in-history.com">In History</a></p>

	Tags:<a href="http://www.in-history.com/tag/190-ad" title="190 AD" rel="tag">190 AD</a>,<a href="http://www.in-history.com/tag/3000-bc" title="3000 BC" rel="tag">3000 BC</a>,<a href="http://www.in-history.com/tag/500-bc" title="500 BC" rel="tag">500 BC</a>,<a href="http://www.in-history.com/tag/abacus" title="Abacus" rel="tag">Abacus</a>,<a href="http://www.in-history.com/tag/abacus-system" title="Abacus System" rel="tag">Abacus System</a>,<a href="http://www.in-history.com/tag/addition-subtraction" title="Addition Subtraction" rel="tag">Addition Subtraction</a>,<a href="http://www.in-history.com/tag/analog" title="Analog" rel="tag">Analog</a>,<a href="http://www.in-history.com/tag/ancient-word" title="Ancient Word" rel="tag">Ancient Word</a>,<a href="http://www.in-history.com/tag/average-person" title="Average Person" rel="tag">Average Person</a>,<a href="http://www.in-history.com/tag/beads" title="Beads" rel="tag">Beads</a>,<a href="http://www.in-history.com/tag/calculators" title="Calculators" rel="tag">Calculators</a>,<a href="http://www.in-history.com/tag/chinese-abacus" title="Chinese Abacus" rel="tag">Chinese Abacus</a>,<a href="http://www.in-history.com/tag/dust-abacus" title="Dust Abacus" rel="tag">Dust Abacus</a>,<a href="http://www.in-history.com/tag/efficiency" title="Efficiency" rel="tag">Efficiency</a>,<a href="http://www.in-history.com/tag/egypt" title="Egypt" rel="tag">Egypt</a>,<a href="http://www.in-history.com/tag/electric-calculator" title="electric calculator" rel="tag">electric calculator</a>,<a href="http://www.in-history.com/tag/greece" title="greece" rel="tag">greece</a>,<a href="http://www.in-history.com/tag/mankind" title="Mankind" rel="tag">Mankind</a>,<a href="http://www.in-history.com/tag/mathematical-problems" title="Mathematical Problems" rel="tag">Mathematical Problems</a>,<a href="http://www.in-history.com/tag/mesopotamia" title="Mesopotamia" rel="tag">Mesopotamia</a>,<a href="http://www.in-history.com/tag/multiplication-and-division" title="Multiplication And Division" rel="tag">Multiplication And Division</a>,<a href="http://www.in-history.com/tag/physical-obstacles" title="Physical Obstacles" rel="tag">Physical Obstacles</a>,<a href="http://www.in-history.com/tag/physical-representation" title="Physical Representation" rel="tag">Physical Representation</a>,<a href="http://www.in-history.com/tag/place-values" title="Place Values" rel="tag">Place Values</a>,<a href="http://www.in-history.com/tag/stone-tools" title="Stone Tools" rel="tag">Stone Tools</a>,<a href="http://www.in-history.com/tag/traditionalists" title="Traditionalists" rel="tag">Traditionalists</a>

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