DOS Family Operating Systems
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Questions and Answers

What is the primary difference between IBM PC DOS and MS-DOS?

  • IBM PC DOS and MS-DOS have different underlying architectures.
  • There is no difference between IBM PC DOS and MS-DOS; they are the same. (correct)
  • IBM PC DOS was introduced in 1981, while MS-DOS was introduced in 1995.
  • IBM PC DOS was primarily developed by Microsoft, while MS-DOS was primarily developed by IBM.

    • Which operating system dominated the IBM PC compatible market between 1981 and 1995?

  • DR-DOS
  • ROM-DOS
  • MS-DOS (correct)
  • FreeDOS

    • What was the main focus of developing IBM PC DOS and 86-DOS?

  • To develop a new operating system for Intel 8086 16-bit processors.
  • To port applications from IBM PC DOS to MS-DOS.
  • To create a platform-independent disk operating system.
  • To simplify porting CP/M applications to MS-DOS. (correct)

    • Which of the following is a platform-independent acronym for disk operating system?

    <p>DOS/360</p> Signup and view all the answers

    What were the primary processors that IBM PC DOS and 86-DOS ran on?

    <p>Intel 8086 16-bit processors</p> Signup and view all the answers

    Which of the following is NOT a member of the DOS family for IBM PC compatible computers?

    <p>Apple ProDOS</p> Signup and view all the answers

    Who referred John Opel to her son Bill Gates for help with an 8088-compatible build of CP/M?

    <p>Mary Maxwell Gates</p> Signup and view all the answers

    What did Digital Research wish to do with CP/M?

    <p>Sell CP/M on a royalty basis</p> Signup and view all the answers

    Who initially developed a variant of CP/M-80, intended as an internal product for testing SCP's new 16-bit Intel 8086 CPU card for the S-100 bus?

    <p>Tim Paterson</p> Signup and view all the answers

    What was the initial name of the system developed by Tim Paterson at Seattle Computer Products?

    <p>QDOS (Quick and Dirty Operating System)</p> Signup and view all the answers

    How much did Microsoft allegedly purchase 86-DOS for?

    <p>$50,000</p> Signup and view all the answers

    What did Microsoft become aware of being sold by IBM under the same name as CP/M?

    <p>An operating system similar to CP/M</p> Signup and view all the answers

    What did IBM give PC consumers a choice of alongside PC DOS?

    <p>CP/M-86</p> Signup and view all the answers

    What did Microsoft originally sell MS-DOS only to?

    <p>Original equipment manufacturers (OEMs)</p> Signup and view all the answers

    What did Microsoft provide OEMs to customize the device driver code to their particular system?

    <p>OEM Adaptation Kit (OAK)</p> Signup and view all the answers

    Which version of DOS supports preemptive multitasking, shared memory, device helper services, and New Executable ('NE') format executables?

    <p>European MS-DOS 4</p> Signup and view all the answers

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