ICT & Multimedia Fundamentals 2015: Data, Information, Knowledge, and ICT Definition
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Questions and Answers

What is data?

  • Processed information meaningful to the receiver
  • Communicated messages
  • Raw material for data processing (correct)
  • Unprocessed information

    • Which of the following best defines information?

  • Raw material for data processing
  • Processed information meaningful to the receiver (correct)
  • Unprocessed information
  • Communicated messages

    • What is multimedia?

  • Documents containing images and animations only
  • Documents containing only text
  • Documents with mixed video and audio
  • Documents with mixed text, images, animations, video, and audio (correct)

    • What does ICT cover?

    <p>All forms of computer and communications equipment and software</p> Signup and view all the answers

    What is computer hardware?

    <p>Physical components of the computer system</p> Signup and view all the answers

    What does an input device do?

    <p>Feeds raw data to the processor</p> Signup and view all the answers

    What is the function of the processing unit in a computer system?

    <p>Controlling all activities within the system</p> Signup and view all the answers

    Which of the following best describes the role of the control unit in the processing unit?

    <p>Translating program instructions into signals for execution</p> Signup and view all the answers

    How is the speed of a CPU measured?

    <p>Number of actions it can perform every second</p> Signup and view all the answers

    What is the function of RAM in a computer?

    <p>Temporarily storing instructions and processing data</p> Signup and view all the answers

    Which type of storage is volatile and loses its contents when the computer's power is turned off?

    <p>Random Access Memory (RAM)</p> Signup and view all the answers

    What is the purpose of a storage medium in a computer system?

    <p>Recording and retrieving items to and from storage media</p> Signup and view all the answers

    Which component is considered the 'brain' of the computer?

    <p>Central Processing Unit (CPU)</p> Signup and view all the answers

    What does 1 Gigahertz (GHz) correspond to in Hertz?

    <p>1000000000</p> Signup and view all the answers

    Study Notes

    Understanding Data and Information

    • Data refers to raw, unprocessed facts and figures without context or meaning.
    • Information is data that has been organized, processed, or structured to provide meaning or context.

    Multimedia

    • Multimedia combines different content forms such as text, audio, images, animations, and video to enhance communication and user experience.

    Information and Communication Technology (ICT)

    • ICT encompasses all technologies used to handle telecommunications, broadcast media, intelligent building management systems, audio-visual processing, and transmission systems.

    Computer Hardware

    • Computer hardware includes the physical components of a computer system, such as the CPU, RAM, hard drives, and peripheral devices.

    Input Devices

    • Input devices allow users to interact with a computer by entering data, such as keyboards, mice, and scanners.

    Processing Unit Function

    • The processing unit, or CPU, performs calculations, executes instructions, and manages data processing.

    Role of the Control Unit

    • The control unit coordinates and directs the operations of the processor, managing how data moves within the CPU and to other components.

    CPU Speed Measurement

    • The speed of a CPU is measured in Hertz (Hz), with 1 Gigahertz (GHz) corresponding to 1 billion cycles per second.

    RAM Functionality

    • RAM (Random Access Memory) temporarily stores data and program instructions currently in use, enabling quicker access by the CPU.

    Volatile Storage

    • Volatile storage, such as RAM, loses its contents when the computer is powered off.

    Purpose of Storage Media

    • Storage media provide a means to save and retrieve data and applications, ensuring long-term data retention.

    Brain of the Computer

    • The CPU is often referred to as the 'brain' of the computer due to its role in processing and executing instructions.

    Gigahertz Conversion

    • 1 Gigahertz (GHz) equals 1 billion Hertz (1,000,000,000 Hz), indicating the frequency of operations.

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    Description

    Test your knowledge of data, information, knowledge, and the definition of ICT in this quiz. Explore the basic concepts of raw data, processed information, and meaningful knowledge, and understand the scope of information and communication technology (ICT) and multimedia.

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