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73. Match List-I with List-II:

List-I(Market structure)List-II (Feature)
(a) Perfect competition(i) Product is differentiated
(b) Monopoly(ii) Homogeneous or differentiated products
(c) Monopolistic competition(iii) Factors of production are freely mobile between firms
(d) Oligopoly(iv) Legal restrictions on entry of new firms
Choose the correct option from those given below:

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75. Linux is the most well-known and widely used:

  • Option : A
  • Explanation : Linux is a multi-user multi-tasking, time-sharing operating system. It was originally designed and developed by Linus Benedict Torvalds in the year 1991. The basic objective behind developing Linux is to bring out an operating system, which was low in cost and had power of the Unix operating system.
    Linux operating system provides both types of interface. It supports CUI and GUI both. Linux is the quite a versatile, powerful, and standard operating system. It gained its popularity because of its portability and robustness. Linux is one of the popular versions of UNIX operating System. It is an open source as its source code is freely available. It is free to use. Linux was designed considering UNIX compatibility. Its functionality list is quite similar to that of UNIX.
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