Skip to main content


Generation of computer since its Invention

                                            Generation of computer 

The development of computer phases is called computer generation. The computer comes into the existence during second world war. The computer was developed in five distinct phases is known as the generation of computers. Each phase is characterized by the type of switching circuits used in the computers.

First generation of computer:  (1946- 1959) 

The computers that were produced in this duration used Vacuum  Tube and called the first generation computer such computers had been very big heavy and with a large number of internal circuits but had a small amount of information.

The first electronic computer of first generation computers was the ENIAC (electronic numerical integrator and calculator) which was developed by J. Presper Eckert and J. W. Mauchy at Pennsylvania University in U.S.A the other developed computer of the first generation were Uni vacED SAC, and ED-VAC etc.

First generation computer pic 1

Characterized of first generation computer:

  • Vacuum tubes were used
  • Large in size and heavy in weight
  • Slow speed of operation
  • Complex maintenance system
  • Limited computing capability

Second generation of computer: (1959-1965)

The computers developed in this duration used transistors in placed of vacuum tube these computers were faster, cheaper and smaller in size than those of first generation computer these computers were having magnetic tape , disk storage for memory the development of high-level programming language such as FORTRAN , COBOL ,Algol etc.

These computers were used for the commercial application such as payroll , inventory control production planning and general laser system that were also developed.

Second generation computer pic 1

Characteristics of second generations of computer:
  • There were used transistors in place of vacuum tube 
  • Smaller in size and less power consuming higher speed of operation 
  • Low heat, production so lower system failure used for producing commercial and other purpose application. 
  • Supported machine and assembly languages.

third generation computer pic 1

Third generation of computer: (1965-1971)

The computer developed in this duration used small integrated circuits intend of vacuum tube or transistors. These circuits were known as chip connecting of the transistor, resistors, and capacitors. These computers were smaller faster more reliable with larger memory and lower power consuming than those of second generation computer. The high-level program language such FORTRAN FORTH, COBOL 68, BASIC LOGO etc. were developed for a high-level programming language.

Instead of punched cards and printouts, users interacted with third generation computers through keyboards and monitors and interfaced with an operating system.

Characteristics of the third generation of computer:

  •   Integrated circuits were used
  •  Better programming   
  •  High-level programming
  •  Higher speed of operation in Nanoseconds
  •  Supported high-level language.

These computers are smaller in size , cheapest price , highest in prominent technology and used , faster in speed and accuracy among all generations. This generation has also given the developments of more refined high-level programming languages and the database  such as COBOL , PASCAL , DBMS , ADA etc.
Fourth generation computer
Fourth generation computer pic 1

Fourth generation of computer: (1971-1980)

The computers developed during this period used very large scale integrated circuits. The computer of this generation used a microprocessor  that was the signal silicon chip  having the entire computer system with about the 50 thousand transistors minicomputers, portable computers, and the supercomputer is the 4th generation of computer.

Characteristics of the fourth generation of computer:

  •  Very large inlaid of data and very large scale integrated circuits know as microprocessor
  • Mass storage capacity
  • Higher speed of operation
  • Smallest in size
  • Higher speed of operation
  • Great developments in the fields of network 
  • Smallest in size 
  • Higher programming languages and database.

Fifth generation of computer: (1971-1980)

The computer of this generation processes this computer will be having artificial intelligence that is based on taking decision  independently. These computers will intelligent to do work enough themselves. They will have knowledge of what and when to do. These computers will be able to reason to drain useful  conclusion about the world to understand a natural language used by as or comprehend a visual scene  and to perform other required human types of intelligence. The scientists are at work to develop the computers with  artificial intelligence.

Fifth generation computer pic 1

Fifth generation computer

Characteristics of fifth generation computer:

    • Robotics
    • Neural network
    • Development of expert systems to make decisions in real life situations
    • Natural language understanding and generation
    • Development of true artificial intelligence
    • more user-friendly interfaces with multimedia features.

    Related article

    1.   What is computer and it's related terms?


    Popular posts from this blog


    SUPERLATIVES OF INDIA भारत में उत्त्कृष्ट 
    1. Which is the longest bridge in India?
    Ans.Bhupen Hazarika Setu

    भारत में सबसे लंबा पुल कौनसा है?
    उत्तर:भूपेन हज़ारिका सेतु

    2. Which is the tallest minaret in India?
    Ans.Fateh Burj

    भारत में सबसे ऊँची ईमारत कौनसी है?
    उत्तर:फतेह बुर्ज

    3. Which is the biggest mosque in India?
    Ans.Jama Masjid

    भारत में सबसे बड़ी मस्जिद कौनसी है?
    उत्तर:जामा मस्जिद

    4. Which is the largest temple in India?

    भारत में सबसे बड़ा मंदिर कौनसा है?

    5. Which is the largest sand desert in India?

    भारत में सबसे बड़ा मरुस्थल कौनसा है?

    6. Which is the longest river in India?

    भारत में सबसे लम्बी नदी कौनसी है?

    7. Which city of the Uttar Pradesh has the Taj Mahal?

    ताजमहल उत्तरप्रदेश के कौनसे शहर में है?

    8. Where is Dalhousie Hill Station located in India?
    Ans.Himachal Pradesh

    डलहौज़ी हिल स्टेशन भारत में कहाँ स्थित है?
    उत्तर:हिमाचल प्रदेश

    9. Who was the first Indian to win Gold Medal at the O…

    How to install MAC mouse cursor in Windows 10

    Windows 10 comes with many options in mouse cursors. They can be changed with their Shape and Size, Their Black and White cursor are also good. But if you are interested in something different than Apple's Mac mouse cursors are available in market to satisfy you.

    How to install MAC mouse cursor in Windows 10
    Now I will show you how to install MAC EI Capitan cursors in Windows 10. Following steps will help you.

    Step 1.   Go to

    Step 2.   Now click on Download link which is in the right corner of website, When this Zip file completely downloaded, now open that Zip file using WINRAR, or locate the file and right click. Now select Extract All(if you have WinRAR installed in your device).

    Step 3.   After that select location, where you want to install that file on your Device.

    Step 4.   Now open that file and locate the file install.inf. After that click on particular file to install MAC EI Capitan cursors in Windows 1…


    INDIA QUIZ WOMEN FIRSTS IN INDIA भारत में महिला सर्वप्रथम  1.First woman doctor of India? Ans.Anandi Gopal Joshi
    भारत की पहली महिला चिकित्सक? उत्तर:आनंदी गोपाल जोशी 
    2.First woman Merchant Navy Officer of India? Ans.Sonali Banerjee
    भारत की पहली महिला मर्चेंट नेवी अफसर? उत्तर:सोनाली बनर्जी 
    3.First woman teacher of India? Ans.Savitribai Phule
    भारत की पहली महिला अध्यापिका? उत्तर:सावित्रीबाई फूल 
    4.First woman President of India? Ans.Mrs.Pratibha Patil
    भारत की पहली महिला राष्ट्रपति? उत्तर:श्रीमती प्रतिभा पाटिल 
    5.First woman Prime Minister of India? Ans.Mrs.Indira Gandhi
    भारत की पहली महिला प्रधानमंत्री? उत्तर:श्रीमती इंदिरा गाँधी 
    6.First Indian World No.1 woman's tennis sportsperson(doubles)? Ans.Sania Mirja
    'विश्व नंबर एक' पहली भारतीय महिला टेनिस खिलाडी (डबल्स में)? उत्तर:सानिया मिर्जा
    7.First Indian No.1 women's badminton player? Ans.Saina Nehwal
    पहली भारतीय महिला नंबर एक बैडमिंटन खिलाडी? उत्तर:साइना नेहवाल 
    8.First woman Chief Minister of India? Ans.Sucheta Kriplani(Utt…