Introduction:-
Computer is man-made electronic machine that changes the way we work, live ,and play. A machine that has done all this and more, now exists in nearly every business and one out of every two households. This incredible invention is the computer. The computer is one of the most powerful innovations in human history. The electronic computer has been around for 2000 years. The computer has changed nearly aspect of People's lives for the better. With the use of computer, people are suddenly able to perform a large amount of computation at dazzling speed. Information can be crunched, organized, and displayed in the blink of an eye. Things that were only dreams a few years ago are now possible due to computer.
Evolution of computer:-
1.Abacus:--The abacus is one of earliest known computation devices. It is a tool that helped in calculating answers of arithmetic problems. The abacus was developed in china about 5000 years ago. The abacus was so successful that its use spread from china to many other countries.
2.Pascal Calculator:-The first real mechanical calculator was invented by a French scientist and mathematician Blaise Pascal, around 1645.in this machine only number 0 to 9.it was only able to addition and subtraction, so it is called adding machine
3.Analytical Engine:-In1820 Charles Babbage, a British mathematician and inventor, designed and built the mechanical on principals that anticipated the modern electronic computer. The concept Babbage put forward was eventually used by engineers in the development of the first computer prototype. For this reason Charles Babbage is known as the "Father of computer". Despite ten years of work ,Babbage failed to built a fully operational model of difference or Analytical Engine. In 1842 lady love lace wrote a demonstration program AMD her contribution to binary arithmetic was later used by John Bon Neumann in developing the modern computer. So she is often regarded as "first computer programmer".
4.Herman Hollerith and punch cards:-In 1890 the united states census Bureau asked Hermam Hollerith to find a way to speed up the processing a cenesus data. Hermam Hollerith created punched cards that resemble today's computer cards.
5.First Electronic computer (ENIAC) :An American engineer, proposed an electronic digital computer, called the Electronic Numerical Integrator And computer (ENIAC), and completed it in 1946 which is regarded as the first successful general Digital computer.
6.Stored Program Concept (EDSAC) :-This concept was incorporated into the EDSAC computer (Electronic Delay Storage Automatic Computer), which is developed at Cambridge university. This computer was capable of storing a sequence of instructions, the equivalent of the first computer program.
7.UNIVAC:-It is the short from of Universal Automatic Computer. In 1951 it was introduced and became the first commercially available computer. The UNIVAC 1 was characteristics of the first generation of computer.
Computer is man-made electronic machine that changes the way we work, live ,and play. A machine that has done all this and more, now exists in nearly every business and one out of every two households. This incredible invention is the computer. The computer is one of the most powerful innovations in human history. The electronic computer has been around for 2000 years. The computer has changed nearly aspect of People's lives for the better. With the use of computer, people are suddenly able to perform a large amount of computation at dazzling speed. Information can be crunched, organized, and displayed in the blink of an eye. Things that were only dreams a few years ago are now possible due to computer.
Evolution of computer:-
4.Herman Hollerith and punch cards:-In 1890 the united states census Bureau asked Hermam Hollerith to find a way to speed up the processing a cenesus data. Hermam Hollerith created punched cards that resemble today's computer cards.
5.First Electronic computer (ENIAC) :An American engineer, proposed an electronic digital computer, called the Electronic Numerical Integrator And computer (ENIAC), and completed it in 1946 which is regarded as the first successful general Digital computer.
6.Stored Program Concept (EDSAC) :-This concept was incorporated into the EDSAC computer (Electronic Delay Storage Automatic Computer), which is developed at Cambridge university. This computer was capable of storing a sequence of instructions, the equivalent of the first computer program.
7.UNIVAC:-It is the short from of Universal Automatic Computer. In 1951 it was introduced and became the first commercially available computer. The UNIVAC 1 was characteristics of the first generation of computer.
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