Starting from 1940s, computers’ performance, measured in terms of processing speed, storage capacity, accuracy of results, multi-tasking ability and versatility has improved significantly. Most major developments from the 1940's to present day have resulted in increasingly smaller, cheaper, more powerful and more efficient computing devices. 3. IBM Watson computeris one example that outsmarts Harvard University Students. The first generation computers were used during 1942-1955. Each generation of computer is characterized by a major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful, more efficient and reliable devices. The other advantage of storing instruction was that computer could do logical decision internally. The digital computes using electronic valves (Vacuum tubes) are known as first generation computers. ENIAC contained 17,468 vacuum tubes, 7,200 crystal diodes, 1,500 relays, 70,000 resistors, 10,000 capacitors and around 5 million hand-soldered joints. All Rights Reserved. There were four competing technologies for providing computer memory: electrostatic storage tubes, acoustic delay lines (mercury or nickel), magnetic drums (and disks? There are five generations of computers. In addition to the microprocessor, a personal computer has a keyboard for entering data, a monitor for displaying information, and a storage device for saving data. They were not so accurate and reliable. Some of the computers of this generation were: Mark I : The IBM Automatic Sequence Controlled Calculator (ASCC), called the Mark I by Harvard University, was an electro-mechanical computer. The beginning of commercial computer age is from UNIVAC (Universal Automatic Computer). (ii) Second Generation (1955-1964) : The second-generation computer used transistors for CPU components & ferrite cores for main memory & magnetic disks for secondary memory. 1. They used Microprocessor (VLSI) as their main switching element. Fast processing power with less power consumption. Introduction: 1946-1959 is the period of first generation computer. The high cost of vacuum tubes prevented their use for main memory. Wilkes at Cambridge University in 1949. The IC was invented by Jack Kilby. The examples of third generation computers are IBM 370, IBM System/360, UNIVAC 1108 and UNIVAC AC 9000 etc. 2. History of Computers The Second Generation • Second-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages, which allowed programmers to specify instructions in words. { It was named Electronic Numerical Integrator and Calculator (ENIAC). Fan for heat discharging and thus to keep cold. Computers of this generation were small in size, low cost, large memory and processing speed is very high. Learn about different generations of computer.Computer - GenerationsGeneration in computer terminology is a change in technology a computer is/was being used. Smaller in size as compared to the first generation computers. Ir generation compu ers (1964-1971) The development of the integrated circuit was the hallmark of the third generation of computers. EDVAC’s addition time was 864 microseconds and its multiplication time was 2900 microseconds (2.9 milliseconds). It utilized serial circuitry, 2.25 MHz bit rate, and had an internal storage capacity 1,000 words or 12,000 characters. 3. 1. It is in the second generation that the concept of Central Processing Unit (CPU), memory, programming language and input and output units were developed. It uses large scale Integrated Circuits (LSIC) built on a single silicon chip called microprocessors. + qs; d.getElementById("contentad409348").appendChild(s); })(document); //-->
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