What is Computer Limitation of Computer n n

What is Computer?

Limitation of Computer n n n It function only when it is provided with information. It can detect but it cannot correct errors. It is subject to occasional breakdown.

Components of Electronic Data Processing Hardware n Software n Firmware n People n

Computer Applications n n n Graphics Government Robotics Business Education Entertainment

Hardware -the physical computer and its components Storage Devices -stores data and program instructions Central Processing Unit (CPU) – carries out program instructions allow the user to communicate with the computer Output Devices – enable the computer to present information to the user Diskette USB CD Arithmetic Unit Registers Control Section Internal Bus Keyboard Mouse Joystick Printers Monitors Speakers Scanners Input Devices

Computer Inventors Based on Comp. Fundamentals and D. O. S

John Napier (1550 -1617) n n John Napier's father, Archibald Napier, was an important man in late 16 th century Scotland. Napier took part in the religious controversies of the time. He was a fervent Protestant and published, what he considered his most important work, the Plaine Discovery of the Whole Revelation of St. John (1593).

William Oughtred (1575 -1660) n n William Oughtred attended Eton School, which although a very famous school was in fact his local school. Oughtred is best known for his invention of an early form of the slide rule.

Blaise Pascal (1623 -1622) Blaise Pascal was the third of Etienne Pascal's children and his only son. Pascal invented the first digital calculator to help his father with his work collecting taxes. n

Gottfried Wilhelm Von Leibniz Gottfried Leibniz was the son of Friedrich Leibniz, a professor of moral philosophy at Leipzig. Friedrich Leibniz It was during this period in Paris that Leibniz developed the basic features of his version of the calculus. n

Joseph Marie Jacquard, Joseph Marie (1752 -1834), a French weaver, noted as the inventor of the Jacquard loom attachment by which many fancy effects in the weaving of textile fabrics, especially large and elaborate figures such as appear in damask, were able to be produced automatically.

Joseph Marie Jacquard n Jacquard was the son of a poor silk weaver of Lyons, whom he assisted in his work. On his father's death Jacquard set up a silk factory.

Charles Xavier Thomas de Colmar French inventor who has been called the “father of the calculating machine industry”. He invented a calculator that was the first add, subtract, divide, multiply accurately.

Charles Babbage n Charles Babbage Born December 26, 1791 in Teignmouth, Devonshire UK, Died 1871, London; Known to some as the "Father of Computing" for his contributions to the basic design of the computer through his Analytical machine.

Howard Aiken studied at the University of Wisconsin, Madison obtaining a doctorate from Harvard in 1939. Aiken completed the Harvard Mark II, a completely electronic computer, in 1947. n

Herman Hollerith's parents were immigrants to the United States from Germany in 1848 after political disturbances in that country. Hollerith designed punches specially made for his system, the Hollerith Electric Tabulating System. n