1.Latest technology of Vacuum Tubes was used in them.
2.They were smaller in size.
3.The invention of vacuum tubes helped to develop the digital computers.
4.They were the fastest of the age and could process in milliseconds.
Sunday, December 13, 2009
ENIAC
Dr.John W.Mauchly was an American Professor.In 1944 he was ordered to develop a computer for helping the USA Army.Purpose was to accurately fire the assembling it.This covered an area of 15000 square feet,and its weight was 30 tons.ENIAC was used in secret research that went into building the first Atomic Bomb.
FIRST GENERATION OF COMPUTERS 1944-59
In 1944 vacuum tubes were invented.These were used in building computers.Computers made with vacuum tubes are called First Genereation Computers.Famous computer of this generation are ENIAC (Electronic Numerical Integrator and Computer).
Friday, December 11, 2009
GENERATIONS OF COMPUTERS
There are five Generations of computer.
1. 1944-1959
2. 1959-1965
3. 1965-1970
4. 1970-1986
5. 1986 TO DATE
1. 1944-1959
2. 1959-1965
3. 1965-1970
4. 1970-1986
5. 1986 TO DATE
MODERN AGE OF COMPUTERS
Modern age of computer is divided into five generations.Generation in computer means a period of technology used in manufacturing the computers.From time to time different technologies have been used in computers.The duration of one kind of technology is called one generation.
DR. ATANASOFF
Dr. Atanasoff was a professor at Lowa state University of USA.He worked on a computer with the help of his student Berry.In 1939 they succeeded in making a computer named ABC ( Atanasoff Berry Comoputer ).Thsi was also an electromechanical computer.
DR.HERMAN HOLLERITH
He was chairman of Bureau of Census of USA.In 1890 he was ordered to complete the census of USA in 11 years.He invented a punched card tabulating machine and completed his work in only two years and six months.It was an electromechanical computer.It could precess 275 punched cards per minute.In 1911 he established IBM Company.
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