In many systems, it is desirable to use some form of compression technique in order to handle data. This can be necessary in order to improve upon data requirements for storage, or to facilitate quicker data transfer in case of limited ban...

Data constitute the raw material of scientific understanding. They are distinguished in analytical data (i.e. numbers with units) and meta-information (i.e. context describing analytical data). Data management is the control of data handli...

Everyone is familiar with the term "word processing," but computers were really developed for "data processing"—the organization and manipulation of large amounts of numeric data, or in computer jargon, &...

Data security is the discipline of protecting data from unauthorized destruction, modification, or disclosure. In short, data security includes everything individuals, companies, governments, and other organisations have to do to protect t...

The term data structure is relevant to computer programming. Data structure refers to a scheme for organizing related pieces of information, usually in memory. Organized data structure makes searching and other manipulations of the data ea...

Data validation is that process by which data is verified to be correct or complies with specific standards or rules. It is used in many different fields within Information Technology. An typical example is verifying the information a user...

An attribute is a characteristic or a property that is inherent in an application. A myriad of attributes exist in word processing, database systems, database management systems, and DOS operating systems. In a word processing application,...

Databases are software applications designed to store and retrieve information. Databases have long been employed as a vital tool by government and business to store, organize, and locate information. Modern database management systems are...

In 1949 communist armies led by Mao Zedong defeated the nationalist regime of Chiang Kai-shek. The communists took control of the Chinese mainland, establishing the People's Republic of China, while Chiang Kai-shek, who had received...

Source: "The Female Patriots." Moore, Milcah Martha. 1768. If men had grown accustomed to their unusual freedoms in the colonies, women had also, and one of those freedoms was making their feelings and opinions known. The &...

When syndicated humor columnist, author, and Pulitzer Prize-winner Dave Barry discusses his motivations for writing about everyday life in the modern world, he could tell his audience that he does it as a public service to point out the fl...

Combining classical music training, jazz virtuosity, and a popular culture sensibility, Dave Grusin has become one of the most prolific composers of the late twentieth century. Born and raised in Littleton, Colorado, Grusin was a classical...

The American virologist David Baltimore (born 1938) received the Nobel Prize in Physiology and Medicine for his work on retrovirus biochemistry and its significance for cancer research. David Baltimore was born on March 7, 1938, in New Yor...

Bohm, David(1917–1992) David Bohm was a major twentieth-century physicist, and one of the world's leading authorities on quantum theory and its conceptual foundations. He was born in Wilkes-Barre, Pennsylvania, on December 20...

Born in Scotland in 1781, David Brewster expected to become a minister. He entered Edinburgh University at age twelve with this goal, but was diverted by his growing interest in science, especially in the building of scientific instruments...

The Australian parasitologist David Bruce (1855-1931) discovered the causes of Malta, or undulant, fever and of sleeping sickness. David Bruce was born on May 29, 1855, in Melbourne, Australia. His family went to Scotland when David was 5....

American astronomer who, with Jane Luu, discovered several small, icy bodies in orbit between planets Neptune and Pluto. Prior to this discovery, the presence of many "Kuiper Belt" objects was predicted. It has even been sugg...

(b. 1937), Pakistani painter. Born in Karachi, Pakistan, Collin David produces minimalist paintings that are complex studies of line and structure, which question the very humanity of the women who inhabit them. David first attended the Na...

1564-1617 German astronomer who was the first to discover a variable star. In 1596 Fabricus observed a third magnitude star in the constellation Cetus. He assumed it was a nova since it later disappeared. Johann Bayer observed the star aga...

The American naval officer David Glasgow Farragut (1801-1870) was the hero of two of the most important Union naval victories in the Civil War. He became the first admiral in the U.S. Navy. James (later David) G. Farragut was born on July ...

Dave Foreman is a self-described radical environmentalist, Co-founder of Earth First!, and a leading defender of "monkey-wrenching" as a direct-action tactic to slow or stop strip mining, clear-cut logging of old-growth for...

1659-1708 English mathematician and astronomer who was one of the first to lecture publicly on Newtonian science. Gregory defended Isaac Newton's views in his Elements of Astronomy (1702); however, he disagreed with Newton's ...

David Hartley's importance for philosophy lies in his Observations on Man, his Frame, his Duty, and his Expectations (1749), which includes the first fully worked-out presentation of an associationist theory of mind. It makes a suggestion ...

The Scottish philosopher David Hume (1711-1776) developed a philosophy of "mitigated skepticism," which remains a viable alternative to the systems of rationalism, empiricism, and idealism. If one was to judge a philosopher by a gauge of r...

Kaplan, David(1933–) An American philosopher and logician, David Benjamin Kaplan was born in Los Angeles in 1933 and has spent his career mainly at the University of California, Los Angeles: first as an undergraduate student (AB in ...