Computer Data Systems and Information Characteristics
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Questions and Answers

Which number system is primarily used in PCs for coding data?

  • Octal
  • Binary (correct)
  • Numerical
  • Decimal
  • Who first articulated the concept of program control in computing processes?

  • Norbert Wiener
  • Ada Lovelace
  • Charles Babbage (correct)
  • J. Mauchli
  • What does the term 'byte' refer to in computing?

  • Information unit represented by 1 or 0
  • A combination of four hexadecimal figures
  • The maximum measure of information
  • The sequence from eight bits (correct)
  • Which characteristic of information ensures it includes all relevant details?

    <p>Completeness</p> Signup and view all the answers

    Which data processing technique is used specifically for arranging or sequencing data?

    <p>Sorting of data</p> Signup and view all the answers

    Study Notes

    Number Systems in Data Coding

    • Binary, decimal, octal, and numerical systems are used to code data in PCs.

    Program Control Concept

    • The concept of program control on computing processes was first stated by several individuals, including J. Mauchli, John Fon Neumann, Ada Lovelace, Norbert Wiener, and Ch. Babbage.

    Byte Definition

    • A byte consists of eight bits.
    • It's a unit for changing letter codes in RAM.
    • A byte is a combination of four hexadecimal figures.
    • It represents the maximum unit of information, measured as 1 or 0.

    Data Storage in Computers

    • Computers store data, elements, algorithms, and multimedia.

    Information Characteristics (Relevance)

    • Information in messages must include relevant details and follow these characteristics:
      • Currency
      • Adequacy
      • Verifiability
      • Accessibility
      • Completeness

    Information Characteristics (Validity and Assessment)

    • Messages must be verifiable for validity, accuracy, and appropriateness. This includes:
      • Currency
      • Adequacy
      • Accessibility
      • Verifiability
      • Completeness

    Information Characteristics (Requirement Satisfaction)

    • Information must reasonably satisfy requirements (legal or otherwise). Key characteristics include:
      • Currency
      • Adequacy
      • Verifiability
      • Accessibility
      • Completeness

    Information Characteristics (Timeliness)

    • Information should be timely and not outdated.
      • Characteristics:
        • Currency
        • Completeness

    Information Characteristics (Bias Reduction)

    • Information should strive to reduce bias. This is achieved by relying on verifiable data. Specific characteristics include:
      • Currency
      • Adequacy
      • Verifiability
      • Accessibility
      • Objectivity

    Data Processing (Ordering)

    • Data processing methods for ordering data include:
      • Sorting
      • Filtering
      • Archiving
      • Formalization
      • Transportation

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    Description

    This quiz covers essential concepts related to number systems used in data coding, program control in computing processes, and the definition and role of bytes in data storage. Additionally, it explores the relevant characteristics of information, emphasizing its validity, accessibility, and completeness in communication.

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