Saturday , 22 June 2024
Home / Computer Science / Computer History

Computer History

Which technology is used in First Generation of Computer

A. Vacuum Tube
B. Transistors
C. Integrated Circuits
D. Microprocessor



Answer & Solution
Option: A
Explanation :Vacuum Tube is the technology which was used in first generation of computer. The period of First Generation of computer was 1946-1959. Vacuum Tubes were the basic components for memory and circuitry for CPU(Central Processing Unit). Vacuum Tubes are look like electric bulb and produce lot of heat. In First Generation of computer batch processing operating system was used. Punch cards, paper tape, magnetic tape was used as input output devices. In this generation machine code was used as programming language.
Vacuum tubes are unreliable, very costly, generates lot of heat, huge size, consume lot of electricity.
Some important computer of first generations are:- ENIAC, EDVAC, UNIVAC, IBM-701, IBM-750.
Discuss in Forum
Report Error
Please comment below with correct answer and it’s detail explanation.



    Who is the father of Computer

    A. Alan Turing
    B. Charles Babbage
    C. J. Presper Eckert
    D. John Mauchly

    Answer & Solution
    Option: B
    Explanation : Charles Babbage is called the father of computer or computing. He invented Difference Engine(1822) and Analytical Engine(1833).
    Difference Engine(1822) was a calculating machine. It was more than a simple calculator. Like modern computers the Difference Engine had storage, where data could be held temporarily. it uses only arithmetical addition and get rid of the need for multiplication and division. The Difference Engine can only do one operation. Difference Engine was a digital device, it operate on discrete digits and these digits were decimal (0–9), they are represented by positions on toothed wheels. When one of the toothed wheels turned from 9 to 0, it move the next wheel to advance one position, carrying the digit.
    Analytical Engine(1833) was considered the first general purpose computer. It was much more than a calculator. It contained an Arithmetic Logic Unit(ALU), basic flow control, and memory. Analytical Engine has many essential features found in the modern digital computer. It was programmable using punched cards. The Analytical Engine had a ‘Store’ where numbers and results could be held like memory in modern computers. Analytical Engine also has a separate ‘Mill’ where the arithmetic processing was performed like CPU(Central Processing Unit) in modern computers. It was also capable of functions like conditional branching, iteration, microprogramming and many others others.
    Discuss in Forum
    Report Error
    Please comment below with correct answer and it’s detail explanation.



      Who is called the father of computer science?

      A. Alan Turing
      B. Charles Babbage
      C. J. Presper Eckert
      D. John Mauchly



      Answer & Solution
      Option: A
      Explanation :The father of computer science is Alan Turing. Alan Turing is considered to be the father of computer science and artificial intelligence. His Turing machines formal and simple devices that based on the concepts of algorithm and computation played an important role in creation of the modern computer. Turing was also a codebreaker in World War II, that helps to end the war and saving thousands of lives. During World War II, Turing helped to develop a machine that cracked the Enigma code used by Nazi Germany.
      After the war Turing worked on the Automatic Computing Engine (ACE), although his ACE was never built. Alan Turing proposing a test to determine whether a computer is “intelligent”. The Turing test was based on the theory that a computer could ‘think’. His ‘Turing test’ is still used as for examining whether a machine considered to be thinking.
      Discuss in Forum
      Report Error
      Please comment below with correct answer and it’s detail explanation.



        Which one is the first Commercially produced digital Computer

        A. ENIAC
        B. ABC
        C. UNIVAC
        D. EDVAC



        Answer & Solution
        Option: C
        Explanation :UNIVAC stands for Universal Automatic Computer. It was developed by J. Presper Eckert and John Mauchly in 1951. It was the first commercially produced electronic digital computer. UNIVAC used 5000 vacuum tubes for computation. It weighed 16,000 pounds and could perform 1000 calculations per second. UNIVAC belongs to first generation of computer.
        Discuss in Forum
        Report Error
        Please comment below with correct answer and it’s detail explanation.



          UNIVAC stands for

          A. Universal Array Computer
          B. Universal Automatic Computer
          C. Unique Automatic Computer
          D. None of These

          Answer & Solution
          Option: B
          Explanation :UNIVAC stands for Universal Automatic Computer. It was developed by J. Presper Eckert and John Mauchly in 1951. It was the first commercially produced electronic digital computer. UNIVAC used 5000 vacuum tubes for computation. It weighed 16,000 pounds and could perform 1000 calculations per second. UNIVAC was first generation computer.
          Discuss in Forum
          Report Error
          Please comment below with correct answer and it’s detail explanation.