Computer Basics for NABARD 2018 Grade A Exam

Today’s World is a Technology Driven world. The Most common tools of Technology for anyone is Mobiles and Computers. Hence every Working personnel should be aware of Computer Basics. This is the reason for almost all Govt exams like NABARD, SSC CPO, SSC CGL, IBPS PO, SBI PO, etc. have Computer Basics as a part of the Exam Syllabus. Computer Basics for NABARD has 20 Marks allocated to it. To help you score the 20 marks for computer Basics we have brought you this blog which covers an important chapter of Computer Basics – Generations of Computers.


NABARD 2018 Exam Pattern

Section Marks Duration
English 40 2 Hours
Reasoning 20
Quantitative Aptitude 20
General Awareness 20
Computer Knowledge 20
Economic and Social Issues 40
Agriculture and Rural Development 40
Total 200

For NABARD Grade A Exam Syllabus, Click here

For Previous years Exam Analysis, Click here

1) Computer Basics for NABARD – First Generation of Computers:

  • The period of 1946 to 1959 is termed as First Generation of computers.
  • Vacuum tubes were used for purpose of memory storage and building CPU circuits.
  • The Vacuum Tubes produced high amount of Heat, as a result they used to fuse very frequently.
  • These were very expensive, non-portable because of the huge sizes.
  • They consumed a lot of electricity and also required AC to control the heating.
  • g. -: UNIVAC, EDVAC, IBM-650, IBM-701, ENIAC.


2) Computer Basics for NABARD – Second Generation of Computers:

  • The period for Second Generation of computers was spanning from 1959 to 1965.
  • In this generation Transistors were used making computers faster and more reliable than first generation computers.
  • Primary memory storage devices were Magnetic Cores and secondary storage devices were magnetic tapes and discs
  • High level programming languages like COBOL and FORTRON were used.
  • The operating system used for multiprogramming.
  • Better in than first generation computers regarding heat generation, electricity consumption, speed and performance but still quite expensive.
  • g. -: CDC 1604, CDC 3600, UNIVAC 1108, IBM 1620

3) Computer Basics for NABARD – Third Generation of Computers:

  • 1965 to 1971 was the period in which Third Generation computers were built.
  • Computers were built with Integrated Circuits (IC) – Invented by Jack Kilby.
  • Several transistors, capacitors and resistors are brought together to build a single IC
  • The computers had advanced to the usage of time-sharing, remote processing, etc, along with Multiprogramming operation systems.
  • The generation of computers used High level languages like PASCAL PL/1, BASIC, FORTRAN-II to IV, etc.
  • The Size of the computers was substantially reduced when compared to First and Second-Generation computers.
  • The Performance was also faster than its predecessors.
  • g. -: Honewell-6000 series, IBM 370/168, TDC, ICL 2900, etc.


4) Computer Basics for NABARD – Fourth Generation of Computers:

  • Fourth generation computers were from the period 1971 to 1980
  • Very Large Scale Integrated (VLSI) circuits were used to build 4th Generation computers
  • These computers were developed using Microprocessors.
  • Each VLSI circuit had around 5000 transistors used on a single chip.
  • These computers were most affordable and portable, compared to the earlier generations.
  • 4th Generation computers were the reason for the Personal Computer revolution
  • Distributed Operating systems and real time networks were the additional technologies used in computers of this generation.
  • C, C++, DBASE, etc. were the High-Level languages used in these computers.
  • Size of the computers was reduced to Desktop size and they were also easily available.
  • Internet was born in this period.
  • g. -: Apple II, STAR 1000, PUP 11, DEC 10, etc.

5) Computer Basics for NABARD – Fifth Generation of Computers:

  • The fifth Generations of computers started from 1980 to present times.
  • Ultra-Large-scale integration (ULSI) technology replaced the VLSI Circuits of Fourth Generation.
  • ULSI technology can create microprocessor chips have 10 million electronic components
  • Parallel procession Hardware and Artificial Intelligence (AI) Software’s are the base of Fifth Generation Computers.
  • The Interface of these computers are very user friendly and they also support multimedia applications.
  • These generation of computers are used for the development of Artificial Intelligence which includes technologies like Neutral Networks, Robotics, Game Playing, Natural Language understanding and generation.
  • g. All Modern-Day Desktops, Laptops, Notebooks, I-Pads, etc.

We hope you liked this blog on Computer Basics for NABARD and it is helpful in your preparation of NABARD 2018

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