General Knowledge Facts

Indian Statistics

  • India has a mobile subscriber’s base of 752 million.
  • The overall tele-density in India is is 66.16 (Feb 2011- TRAI Report)
  • The overall urban tele-density of India is 147.88
  • The overall rural tele-density of India is 31.18 %
  • The PC to mobile ratio is estimated as 1:4 in India (2011)
  • It has been estimated that Kerala will be teh frist state to reach 100% tele-density level

General Facts

  • In early 1960s Gene Amdahl designed the IBM System/360 series of mainframe computers, which considered as the first general purpose digital computers which uses intergrated circuits.
  • In 1961 Dr. Hopper developed the COBOL (Common Business Oriented Language) programming language.
  • In 1964 the International Business Machines (IBM) publishes and marketed the term “word processor
  • In 1965 Dr. Thomas Kurtz and Dr. John Kemeny developped BASIC (Beginners All-purpose Symbolic Instruction Code) programming language .
  • In 1969 the Internet was started.
  • In 1969, computers were first used to communicate synchronously.
  • In 1970 Dr. Ted Hoff developed the famous Intel 4004 microprocessor (G) chip.
  • In 1971 the Intel released the first microprocessor, a specialized integrated circuit which was able to process four bits of data at a time.
  • In 1976 Apple Computers was founded by Steven Jobs and Stephen Wozniak.
  • In 1981 the IBM PC was introduced with a 16-bit microprocessor.
  • Abacus is considered as the first known counting device and it was orginated from Asia. Abacus worked on a place-value notion meaning that the place of a bead or rock on the apparatus determined how much it was worth.
  • In 1642 a French mathematician and philosopher Blaise Pascal invented the first mechanical digital calculator using gears known as the Pascaline.
  • In 1812 Charles P. Babbage later known as the “father of the computer”,designed a machine, the difference engine which was steam-powered, fully automatic and commanded by a fixed instruction program.
  • In 1947 the giant calculating device ENIAC (Electrical Numerical Integrator and Calculator) machine was developped by John W. Mauchly and J. Presper Eckert, Jr. at the University of Pennsylvania.

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