HISTORY OF COMPUTER
Part-1
A computer can be define " An electronic device which accept information and process it and produces the output in accordance to set of instruction provided to it." Computer offers unique characteristics such as speed , accuracy, diligence, versatility,memory etc.
The first use of word "computer" was recorded in 1613, referring to person who carried out calculation. The original objective for inventing a computer was to create fast calculating machine. However, more than 80% of work done by computer today is non mathematical nature.
The Blaise pascal invented the first mechanical adding machine in 1642. later in 1671 Baron Gottfried Wilhelm Von Leibniz of Germany invented the first calculator for multiplication.the punch card invented in 1970 which was use as input medium in computers. CharlBabbage an English mechanical engineer and polymath introduced a concept of programmable computer. Babbage known as father of computer.Babbage design a difference engine in the year 1822 that could produce realible tables.after it Babbage came forward with his new idea of completely automatic engine which perform basic arithmatic function in 1842. He conceptualized and invented the first mechanical computer in early 19's century.
In 1937 to 1944 mark-1 the electromechanical computer was introduce by staff of Havard university. The IBM automatic sequence controlled calculator called as mark-1. It was introduced at time of world war-2. It is general purpose computer.IN 1936-37 the z1 was mechanical computer introduce by Konrad Zuse. Z1 was the first freely programmable computer in the world ear which used boolean logic and binary floating point number. This computer was destroyed in bomb bombardment of Berlin in 1943 in during wold war-2. Z1 original name was "v1" for versuchmodel1.
After inventing Z1 a Konard Zuse improve the Z1` and introduced mechanical and relay computer Z2. It has same mechanical memory as Z1 but replacing the arithmatic and controlled logic with relay circuit in 1940. Z2 were destroyed in alied bombardment in world war-2.
Konard Zuseinvent Z3 was the German electromechanical computer in 1941. It was world's first working programmable fully automatic digital computer. It had 2600 relay implementing 22-bit word length that operated at clock frequency about 4-5 Hz. Z3 was originally called V3 ( versuchsmodll 3 ). It was destroyed during the alied bombardment of Berlin in world war -2 .
IN 1939-42 the Atanasoff-Berry computer was first automatic digital computer. It was build by Lowa state collage mathematics and physics professor John Vincent Atanasoff.It was design to solve linear equation.
the later the computer had invented as the purpose.
After inventing Z1 a Konard Zuse improve the Z1` and introduced mechanical and relay computer Z2. It has same mechanical memory as Z1 but replacing the arithmatic and controlled logic with relay circuit in 1940. Z2 were destroyed in alied bombardment in world war-2.
Konard Zuseinvent Z3 was the German electromechanical computer in 1941. It was world's first working programmable fully automatic digital computer. It had 2600 relay implementing 22-bit word length that operated at clock frequency about 4-5 Hz. Z3 was originally called V3 ( versuchsmodll 3 ). It was destroyed during the alied bombardment of Berlin in world war -2 .
IN 1939-42 the Atanasoff-Berry computer was first automatic digital computer. It was build by Lowa state collage mathematics and physics professor John Vincent Atanasoff.It was design to solve linear equation.
the later the computer had invented as the purpose.
