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Generations of computers

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Generations of computers

  1. 1. 1st Gen 1940- 56 2nd Gen 1956- 63 3rd Gen 1964- 71 4th Gen 1971- present 5th Gen Present & Beyond Use of vacuum tubes Use of transistor & diodes Use of IC’s Use of LSI & VLSI Use of IC’s with ULSI technology Limited storage capacity Increased storage capacity Memory flexibility with i/p & o/p Increased storage Based on artificial intelligence Enormous in size, Expensive Faster speed Smaller in size& better performance Faster & smaller Larger storage capacity Slow speed Reduced in size & heat generation Extensive use of high level languages Modular design , compatible Support for more complex apps Machine & assembly languages High level programming languages Remote processing & timesharing Programs & languages for special applications Still under development Problems of overheating COBOL & FORTRAN Increased use of microcomputers

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