Computer Generation

 History of Computer Fist Generation (1946-1954): In 1946 the digital computer using electronic valves (Vacuum tubes) are known as first generation computers. The first "computer" to use electronic valves i.e. vacuum tubes. The high cost of vacuum tubes prevented their use for main memory. They stored information in the form of propagating sound waves. The vacuum tube consumes a lot of power. These computers were large in size and writing programs on them was difficult. Some of the computers of this generation were: ENIAC: It was the first electronic computer built in 1946 at University of Pennsylvania, USA by  John Eckert and John Mauchy. It was named Electronic Numerical Integrator and calculator 30 tons, contained 18000 vacuum tubes, 70,000 resisters, 10,000 capacitors and required 15,000 watts of electricity. Today computers is many times as powerful as ENIAC, still size is very small. EDVAC:  It stands of Electronic Discrete Variable Automatic Computer and was dev...