COMPUTER

Computer is an electronic device that receives input, stores and manipulates data, and provides output in a useful format at high speed. Computer performs tasks, such as calculations or electronic communication, under the control of a set of instructions called a program. Computers perform a wide variety of activities reliably, accurately,...

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BEST INPUT DEVICE AVAILABLE IN MARKET

INPUT DEVICE An input device can be defined as an electromechanical device that allows the user to feed data and instructions into the computer for analysis, storage, and to give the commands to the computer. Data and instructions are entered into the computer’s main memory through an input device. Input device captures data and translates...

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FIRST GENERATION COMPUTERS

FIRST GENERATION OF COMPUTERS During the period of 1940 to 1956 first generation of computers were developed. The first generation computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. The vacuum tube was developed by Lee DeForest. A vacuum tube is a device generally...

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SECOND GENERATION COMPUTERS

SECOND GENERATION COMPUTERS During the period of 1956 to 1963 second generation of computers were developed. The second generation computers emerged with development of Transistors. The transistor was invented in 1947 by three scientists J. Bardeen, H.W. Brattain and W. Shockley. A transistor is a...

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THIRD GENERATION COMPUTERS

THIRD GENERATION COMPUTERS During the period of 1964 to 1971 Third generation computers were developed. The third generation computers emerged with the development of IC (Integrated Circuits). The invention of the IC was the greatest achievement done in the period of third generation of computers. IC was invented by Robert Noyce...

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FOURTH GENERATION COMPUTERS

FOURTH GENERATION COMPUTERS After 1971 the fourth generation computers were built. The fourth generation computers were the extension of third generation technology. The fourth generation computers emerged with development of the VLSI (Very Large Scale Integration).With the help of VLSI technology microprocessor came into existence....

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FIFTH GENERATION COMPUTERS

FIFTH GENERATION COMPUTERSFifth generation computers are in developmental stage which is based on the artificial intelligence. The goal of the fifth generation is to develop the device which could respond to natural language input and are capable of learning and self-organization. Quantum computation and molecular and nanotechnology will...

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UNIVAC

Universal Automatic Computer (UNIVAC) UNIVAC (Universal Automatic Computer) was the first commercially general purpose electronic computer. John Eckert and John Mauchly at the Moore School of Engineering, Pennsylvania developed it in 1951. It was used for the analysis of 1952 Presidential Election in the United States. It...

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EDSAC

Electronic Delay Storage Automatic Calculator (EDSAC) EDSAC (Electronic Delay Storage Automatic Calculator) was developed by a group of scientists, headed by Professor Maurice Wilkes at Cambridge University, England, in 1949. It was also based on the stored program concept and one of the first to use binary digits. The...

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EDVAC

Electronic Discrete Variable Automatic Computer (EDVAC) John Mauchly and J.P. Eckert also proposed the development of EDVAC. The conceptual design for EDVAC electronic computer to use the stored program concept introduced by John Von Neumann. Unlike the ENIAC, it used binary number rather than decimal. The University of Pennsylvania...

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ENIAC

Electronic Numerical Integrator and Calculator (ENIAC) Electronic Numerical Integrator and Calculator (ENIAC) was designed by John Mauchly and John Presper Eckert in 1946 at the Moore School of Electrical Engineering, University of Pennsylvania. It was the first electronic computer. ENIAC was initially built for the United States...

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