simple document classification schemes are also important for fighting countries. In 1960s, alongside with many more mainframe computers were brought to do more complex tasks, ARPA was born and was developed to be ARPANET later, which is the origin of internet. But ARPA led several security issues and need to be improved, such as securing the data, limiting random and unauthorized access to that data, involving personnel from multiple levels of the organization in information security. Multiplexed…
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