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INDEX 
 INTRODUCTION 
 FIRST GENERATION OF COMPUTER 
 SECOND GENERATION OF COMPUTER 
 THIRD GENERATION OF COMPUTER 
 FOURTH GENERATION OF COMPUTER 
 FIFTH GENERATION OF COMPUTER 
 REFERENCE
INTRODUCTION 
 The history of computer development is often referred 
to in reference to the different generations of 
computing devices. 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 and more efficient and reliable devices.
First Generation - 1940-1956: Vacuum Tubes 
 Used vacuum tubes for circuitry, magnetic drums for 
memory, and were often enormous, taking up entire rooms. 
 Very expensive , consumed great deal of electricity, generated 
a lot of heat, which was often the cause of malfunctions. 
 Relied on machine language to perform operations, could 
solve one problem at a time. 
 Input was based on punched cards and paper 
tape, and output was displayed on printouts. 
 UNIVAC and ENIAC computers are examples of first-generation 
computing devices.
Second Generation - 1956-1963: Transistors 
 Transistors replaced vacuum tubes allowing computers to 
become smaller, faster, cheaper, more energy-efficient and 
more reliable than their first-generation predecessors. 
 Still relied on punched cards for input and printouts for 
output. 
 Second-generation computers moved from cryptic binary 
machine language to symbolic, or assembly, languages, 
which allowed programmers to specify 
instructions in words. 
 High-level programming languages like COBOL and 
FORTRAN were used.
Third Generation - 1964-1971: Integrated 
Circuits 
 Integrated circuit was used 
 Transistors were miniaturized and placed on silicon chips, 
called semiconductors, which increased the speed and 
efficiency of computers. 
 Instead of punched cards and printouts, users interacted 
through keyboards and monitors and interfaced with an 
operating system, which allowed the device to run many 
different applications at one time with a central program that 
monitored the memory. 
 Computers for the first time became accessible to a mass 
audience because they were smaller and cheaper 
than their predecessors.
Fourth Generation - 1971-Present: 
Microprocessors 
 Microprocessor were used 
 What in the first generation filled an entire room could now 
fit in the palm of the hand 
 In 1981 IBM introduced its first computer for the home user, 
and in 1984 Apple introduced the Macintosh. 
 As these small computers became more powerful, they could 
be linked together to form networks, which eventually led to 
the development of the Internet. 
 Fourth generation computers also saw the development of 
GUIs, the mouse and Hand held devices.
Fifth Generation - Present and Beyond: Artificial 
Intelligence 
 Fifth generation computing devices, based on artificial 
intelligence, are still in development, though there are some 
applications, such as voice recognition, that are being used today. 
 The use of parallel processing and superconductors is 
helping to make artificial intelligence a reality. 
 Quantum computation and molecular and nanotechnology will 
radically change the face of computers in years to come. 
 The goal of fifth-generation computing is to develop devices that 
respond to natural language input and are capable of learning and 
self-organization.
REFERENCE 
 www.library.thinkquest.org 
 www.datahub.blog.co.in 
 www.google.com
THANK YOU

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The five generations of computers presentation

  • 1.
  • 2. INDEX  INTRODUCTION  FIRST GENERATION OF COMPUTER  SECOND GENERATION OF COMPUTER  THIRD GENERATION OF COMPUTER  FOURTH GENERATION OF COMPUTER  FIFTH GENERATION OF COMPUTER  REFERENCE
  • 3. INTRODUCTION  The history of computer development is often referred to in reference to the different generations of computing devices. 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 and more efficient and reliable devices.
  • 4. First Generation - 1940-1956: Vacuum Tubes  Used vacuum tubes for circuitry, magnetic drums for memory, and were often enormous, taking up entire rooms.  Very expensive , consumed great deal of electricity, generated a lot of heat, which was often the cause of malfunctions.  Relied on machine language to perform operations, could solve one problem at a time.  Input was based on punched cards and paper tape, and output was displayed on printouts.  UNIVAC and ENIAC computers are examples of first-generation computing devices.
  • 5. Second Generation - 1956-1963: Transistors  Transistors replaced vacuum tubes allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors.  Still relied on punched cards for input and printouts for output.  Second-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages, which allowed programmers to specify instructions in words.  High-level programming languages like COBOL and FORTRAN were used.
  • 6. Third Generation - 1964-1971: Integrated Circuits  Integrated circuit was used  Transistors were miniaturized and placed on silicon chips, called semiconductors, which increased the speed and efficiency of computers.  Instead of punched cards and printouts, users interacted through keyboards and monitors and interfaced with an operating system, which allowed the device to run many different applications at one time with a central program that monitored the memory.  Computers for the first time became accessible to a mass audience because they were smaller and cheaper than their predecessors.
  • 7. Fourth Generation - 1971-Present: Microprocessors  Microprocessor were used  What in the first generation filled an entire room could now fit in the palm of the hand  In 1981 IBM introduced its first computer for the home user, and in 1984 Apple introduced the Macintosh.  As these small computers became more powerful, they could be linked together to form networks, which eventually led to the development of the Internet.  Fourth generation computers also saw the development of GUIs, the mouse and Hand held devices.
  • 8. Fifth Generation - Present and Beyond: Artificial Intelligence  Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today.  The use of parallel processing and superconductors is helping to make artificial intelligence a reality.  Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come.  The goal of fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization.
  • 9. REFERENCE  www.library.thinkquest.org  www.datahub.blog.co.in  www.google.com