What is a Hardware?

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Hardware is the physical part of a computer system that enables us to operate it. It includes keyboard, screen, disk drives and electronic circuits. The first electronic computer which was built in 1945, weighed 30 tonnes and occupied a space of 140 sq metres. It contained more than 18,000 valves. Modern computers are compact and powerful and fit on a desktop.

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What are Computer Graphics?

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Computer graphics are pictures produced by computer. They may appear on screen or be printed on paper. Almost all the computer games and now business , scientific and engineering programs use graphics. The graphics with their colour and drawings prove to be more informative than when explained in words. The use of graphics in Computer Aided Design (CAD ) can help in designing a small object to a space craft. Engineers use computers in the designing of more efficient vehicles. Small changes can be made to the design and their effects can be observed without having to redraw the whole object and make a new model for testing.
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When were the First Mechanical Clocks Made?

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Who was Winston Churchill?

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W inston Churchill was a great British prime minister, war leader and writer. He began his career as a soldier. He later joined politics and became a senior minister in Parliament before and during World War I, although he was not very powerful then. In 1940, when the World War 11 threatened Britain, the country chose him as its prime minister. As a leader during war-time, he showed great courage and determination . His roaring speeches helped the people of Britain to fight on when they stood alone against Germany and her allies. He died in 1965.
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What are Magellan Clouds?

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