Computers Then and Now

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Improvements on common machines

Computer- For most of the people, computer is a machine used for a calculation or a computation, but actually it is much more than that. Precisely Computer is an electronic device for performing arithmetic and logical operation. Or “Computer is a device or a flexible machine to process data and converts it into information.” To know about the complete process that how computer works, we will have to come across the various terms such as Data, Processing and Information. First of all we will have to understand these terms in true sense. 1. DATA: “Data” is nothing but a mare collection of basic facts and figure without any sequence. When the data is collected as facts and figure, it has no meaning at that time, for example, name of student, names of employees etc. 2.PROCESSING: -‘Processing’ is the set of instruction given by the user or the related data to output the meaningful information. Which can be used by the user? The work of processing may be the calculation, comparisons or the decision taken by the computer. 3. INFORMATION: -‘Information ’is the end point or the final output of any processed work. When the output data is meaning it is called information. As the time passed, the device of more suitable and reliable machine was need which could perform our work more quickly. During this time, in the year 1946, the first successful electronic computer called ENIAC was developed and it was the starting point of the current generation of computer FIRST GENERATION

ENIAC was the world first successful electronic computer which was develops by the two scientists namely J.P. Eckert and J. W. Mauchy. It was the beginning of first generation computer. The full form of ENIAC is “Electronic Numeric Integrated and Calculator” ENIAC was a very huge and big computer and its weight was 30 tones. It could store only limited or small amount of information. Initially in the first generation computer the concept of vacuum tubes was used....
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