Hindu-Arabic is our current number system while Babylonian numbers are an ancient number system which uses base 60 and uses only two symbols.
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There are many differences between cow's and human's circulatory systems. The cow system has to work around 4 stomachs for example.
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Japanese and American management systems are more or less the same. There might have been a difference few decades ago, however they are now similar.
Knowledge work systems and office automation systems serve the information needs at the knowledge level of the organization. , where as office automation systems primary aid data workers (although they are also used extensively by knowledge workers)
Russia and the United States have different government systems. Russia's government is a federation with a dictator in charge while the United States is a democracy.