The objective is to investigate significant developments in advanced computers and to explore the relationship between programming and new concepts of computer organization. Two specific studies are in progress: Data Sequencing and Vertical Data Processing.
The health care industry represents a major part of the U.S. economy. In 2007 total U.S. health care spending comprised 16% of the country’s GDP, amounting to $2.3 trillion.7 According to the National Institute of Standards and Technology, approximately 20% of health care expenditure, some $460 billion in 2007, was dedicated to the tasks of […]
Cryptographic techniques which can be used to maintain the confidentiality of information processed by computers are dealt with. Special emphasis is paid to the unique characteristics of computer files that make many cryptographic methods of little use. Relative security, costs, and preferred methods are included in this paper.
Communications of the ACM (CACM) is now a fully Open Access publication.
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