Over All knowledge of Computer Generation

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2. An amazing machine! We are living in the computer age today and most of our
day to day activities cannot be accomplished without using computers.
Computer has become an indispensable and multipurpose tool. We are
breathing in the computer age and gradually computer has become such a
desire necessity of life that it is difficult to imagine life without it.
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3. “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.
DEFINITION
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4. Abacus is known to be the first
mechanical calculating device.
Which was used to be
performed addition and
subtraction easily and speedily?
This device was a first
developed by the Egyptians in
the 10th century B.C, but it was
given it final shape in the 12th
century A.D. by the Chinese
educationists.
As the necessity demanded,
scientist started inventing better
calculating device. In thus
process John Napier’s of
Scotland invented a calculating
device, in the year 1617 called the
Napier Bones.
In the year 1642, Blaise Pascal a
French scientist invented an
adding machine called Pascal’s
calculator, which represents the
position of digit with the help of
gears in it.
HISTORY
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5. In the year 1671, a German
mathematics, Gottfried Leibniz
modified the Pascal calculator
and he developed a machine
which could perform various
calculation based on
multiplication and division as
well.
In the year 1833, a scientist form
England knows to be Charles
Babbage invented such a
machine. Which could keep our
data safely? This device was
called Analytical engine and it
deemed the first mechanical
computer. It included such
feature which is used in today’s
computer language. For this
great invention of the computer,
Sir Charles Babbage is also
known as the father of the
computer.
HISTORY
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6. Abacus is made up of wooden frame in
which rod where fitted across with rounds
beads sliding on the rod. It id dividing into
two parts called ‘Heaven’ and ‘Earth’.
Heaven was the upper part and Earth was
the lower one. Thus any no. can be
represented by placing the beads at proper
place.
THE ABACUS
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In the device, Napier’s used the bone rods
of the counting purpose where some no. is
printed on these rods. These rods that one
can do addition, subtraction, multiplication
and division easily.
NAPIER’S
BONES
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8. PASCAL’S
CALCULATOR
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LEIBNZ’S
CALCULATOR
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10. ANALYTICAL
ENGINE
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11. HISTORY OF COMPUTER
&
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.
GENERATION
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12. Vacuum tube
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Transistor
Integrated Circuit VLSI
microprocessor
ULSI
microprocessor
THE COMPUTER GENERATION
There are totally five computer generations
1 2 3 4 5
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13. VACUUM TUBE.
The period of first generation was 1946-1959. The computers of first generation
used vacuum tubes as the basic components for memory and circuitry for CPU
(Central Processing Unit). These vacuum tubes, like electric bulbs, produced a lot
of heat and were prone to frequent fusing of the installations, therefore, were very
expensive and could be afforded only by very large organizations. In this
generation mainly batch processing operating system were used. Punched cards,
paper tape, and magnetic tape were used as input and output devices. The
computers in this generation used machine code as programming language.
FIRST
GENERATION
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 Vacuum tube technology
 Unreliable
 Supported machine language only
 Very costly
 Generated lot of heat
 Slow input and output devices
 Huge size
 Need of A.C.
 Non-portable
 Consumed lot of electricity
The main features of first generation are:
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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. A vacuum tube was such an electronic component which had very less work efficiency
and so it could not work properly and it required a large cooling system.
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16. TRANSISTORS.
The period of second generation was 1959-1965. In this generation transistors
were used that were cheaper, consumed less power, more compact in size, more
reliable and faster than the first generation machines. In this generation, magnetic
cores were used as primary memory and magnetic tape and magnetic disks as
secondary storage devices. In this generation assembly language and high-level
programming languages like FORTRAN, COBOL were used. The computers used
batch processing and multiprogramming operating system.
SECOND
GENERATION
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17.  Use of transistors
 Reliable in comparison to first generation
computers
 Smaller size as compared to first generation
computers
 Generated less heat as compared to first
generation computers
 Consumed less electricity as compared to first
generation computers
 Faster than first generation computers
 Still very costly
 A.C. needed
 Supported machine and assembly languages
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The main features of second generation are:
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The second generation computers emerged with development of Transistors. The transistor was invented in 1947
by three scientists J. Bardeen, H.W. Brattain and W. Shockley. A transistor is a small device made up of
semiconductor material like germanium and silicon. Even though the Transistor were developed in 1947 but was
not widely used until the end of 50s. The transistor made the second generation computers faster, smaller,
cheaper, more energy-efficient and more reliable than their first-generation computers. Second Generation
computer is IBM 1620
SECOND
GENERATION
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19. INTEGRATED CIRCUIT.
The period of third generation was 1965-1971. The computers of third generation
used integrated circuits (IC's) in place of transistors. A single IC has many
transistors, resistors and capacitors along with the associated circuitry. The IC was
invented by Jack Kilby. This development made computers smaller in size, reliable
and efficient. In this generation remote processing, time-sharing, multi-
programming operating system were used. High-level languages (FORTRAN-II TO
IV, COBOL, PASCAL PL/1, BASIC, ALGOL-68 etc.) were used during this generation.
THIRD
GENERATION
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20.  IC used
 More reliable in comparison to previous two
generations
 Smaller size
 Generated less heat
 Faster
 Lesser maintenance
 Still costly
 A.C needed
 Consumed lesser electricity
 Supported high-level language
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The main features of third generation are:
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THIRD
GENERATION
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22. VLSI CIRCUIT.
The period of fourth generation was 1971-1980. The computers of fourth
generation used Very Large Scale Integrated (VLSI) circuits. VLSI circuits
having about 5000 transistors and other circuit elements and their associated
circuits on a single chip made it possible to have microcomputers of fourth
generation. Fourth generation computers became more powerful, compact,
reliable, and affordable. As a result, it gave rise to personal computer (PC)
revolution. In this generation time sharing, real time, networks, distributed
operating system were used. All the high-level languages like C, C++, DBASE etc.
were used in this generation.
FOURTH
GENERATION
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23.  VLSI technology used
 Very cheap
 Portable and reliable
 Use of PC's
 Very small size
 No A.C. needed
 Concept of internet was introduced
 Great developments in the fields of networks
 Computers became easily available
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The main features of fourth generation are:
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FOURTH
GENERATION
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25. ULSI CIRCUIT.
The period of fifth generation is 1980-till date. In the fifth generation, the VLSI
technology became ULSI (Ultra Large Scale Integration) technology,
resulting in the production of microprocessor chips having ten million electronic
components. This generation is based on parallel processing hardware and AI
(Artificial Intelligence) software. AI is an emerging branch in computer science,
which interprets means and method of making computers think like human
beings. All the high-level languages like C and C++, Java, .Net etc. are used in this
generation.
FIFTH
GENERATION
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26.  ULSI technology
 Development of true artificial intelligence
 Development of Natural language processing
 Advancement in Parallel Processing
 Advancement in Superconductor technology
 More user friendly interfaces with multimedia
features
 Availability of very powerful and compact
computers at cheaper rates
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The main features of fifth generation are:
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FIFTH
GENERATION
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Artificial intelligence (AI) is an area of computer
science that emphasizes the creation of intelligent
machines that work and react like humans. Some of
the activities computers with artificial intelligence
are designed for include:
Speech recognition
Learning
Planning
Problem solving
About “AI”
Artificial Intelligence
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SOPHIA
Sophia is a social humanoid
robot developed by Hong Kong-based
company Hanson Robotics. Sophia was
activated on April 19, 2015 and made her
first public appearance at South by
Southwest Festival (SXSW) in mid-March
2016 in Austin, Texas, United States. She is
able to display more than 62 facial
expressions
Sophia
(Robot)
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30. THANK YOU
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