Computer Organization and Architecture Unit 1
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Questions and Answers

What is the primary role of the Central Processing Unit (CPU)?

  • To manage the external environment of the computer system
  • To store large amounts of data permanently
  • To provide power supply to the computer components
  • To control the operation of the computer and perform data processing functions (correct)

    • Which of the following best describes the system bus?

  • A type of software that manages system resources
  • A storage device used by the CPU
  • A mechanism that provides communication among CPU, main memory, and I/O (correct)
  • A cooling system for the computer

    • What is a characteristic of modern computers regarding processors?

  • They often use multiple processors within a single computer (correct)
  • They have no limit on the number of processors they can contain
  • They exclusively use external processors only
  • They typically contain one high-performance processor

    • What happens to components in a computer system in relation to the system bus?

    <p>They attach to the system bus for communication</p> Signup and view all the answers

    Which function does not relate to the Central Processing Unit?

    <p>Communicating with external networks</p> Signup and view all the answers

    What aspect refers to the arrangement and relationship of components within a computer system?

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

    Which of the following describes the operation of each individual component within a computer's structure?

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

    What is the process of transferring data between a computer and peripheral devices called?

    <p>Input-output (I/O)</p> Signup and view all the answers

    In a hierarchical system, which approach begins with a comprehensive overview before breaking it down into subcomponents?

    <p>Top-down approach</p> Signup and view all the answers

    What type of memory temporarily stores data while it is being processed by the computer?

    <p>Main memory</p> Signup and view all the answers

    Which of the following is NOT considered a basic function of a computer?

    <p>Data construction</p> Signup and view all the answers

    What is the term for moving data over longer distances, typically involving remote devices?

    <p>Data communication</p> Signup and view all the answers

    What is the primary role of peripheral devices in a computer system?

    <p>Inputting and outputting data</p> Signup and view all the answers

    What is the primary focus of computer architecture?

    <p>The attributes visible to a programmer that impact program execution.</p> Signup and view all the answers

    Which of the following best describes computer organization?

    <p>The implementation of architectural aspects using hardware design.</p> Signup and view all the answers

    What does the instruction set in computer architecture refer to?

    <p>The set of instructions that a computer can execute.</p> Signup and view all the answers

    Which of the following characteristics is NOT part of computer architecture?

    <p>Control signals.</p> Signup and view all the answers

    When designing a computer system, what comes first?

    <p>Determining the architecture of the computer.</p> Signup and view all the answers

    What is the role of computer organization in the context of computer systems?

    <p>It describes how the architecture functions through hardware implementation.</p> Signup and view all the answers

    Which best describes the evolution of processor architecture?

    <p>Combined improvements in both architecture and organization.</p> Signup and view all the answers

    What does the term 'Von Neumann Architecture' refer to?

    <p>An architecture that integrates both data and instructions in the same memory.</p> Signup and view all the answers

    Study Notes

    Unit 1: Computer Organization and Architecture (1.1 & 1.2)

    • The unit covers computer organization and architecture, structure, and function.
    • It includes the evolution of computers, Von Neumann architecture, instruction interpretation, interconnection structures, instruction cycles, instruction pipelines, and RAM model evolution of Intel processor architecture (4-bit to 64-bit).

    Computer Organization and Architecture

    • Computer architecture describes the attributes of a computer system visible to a programmer. These attributes directly influence the logical execution of a program.
    • Computer organization describes the operational units and interconnections of a computer system to realize the architectural specifications. This is the hardware implementation.

    Architectural Attributes

    • Instruction set is a fundamental architectural attribute.
    • Data types (like numbers and characters) are defined by the number of bits used to represent them.
    • Input/Output (I/O) mechanisms/techniques are used for memory addressing.

    Organizational Attributes

    • Hardware details transparent to programmers, such as control signals, interfaces (between computer and peripherals), and memory technology. These are not visible to the programmer.

    Computer Architecture

    • Describes the functional parts of a computer.
    • Defines what the computer does.
    • Comes before the computer's organization during design.

    Computer Organization

    • Determines how the architectural aspects (functions/operations) are realized in hardware.
    • Details how the organization works.
    • Defines the structural relationship between components.
    • Comes after the organization decisions are made.

    Structure and Function

    • A computer is a complex system with millions of elementary electronic components.
    • Hierarchical structure (a set of interconnected subsystems) is essential for describing and designing complex systems.
    • Components at each level have interrelationships of structure and function.
    • Structure explains how components are interconnected; and
    • Function describes the operation of individual components within the structure.
    • A top-down approach to describing the computer, starting with major components and detailing their structure and function is the most effective.

    Functional View of a Computer

    • Basic computer functions include data processing, storage, movement, and control.
    • Data forms may be wide ranging.
    • Processing requires temporary data storage (short-term memory).
    • Data storage in files allows later access.
    • Moving data between a computer and peripherals or remote devices is Input/Output (I/O).
    • Remote data movement is called data communication.

    Structural View of a Computer

    • The simplest possible depiction of a computer's structure is given, showing computer interaction with its surroundings and the communication lines and peripherals.
    • In a practical depiction, there is a central processing unit (CPU), input/output (I/O) connections, and main memory.
    • The CPU controls operations, and performs data processing.
    • Often, computers today have multiple processors.
    • Data moves between the computer and its external environment (e.g., peripherals).
    • The system interconnection mechanism connects the CPU, main memory, and I/O.

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    Related Documents

    Unit 1 Computer Organization And Architecture Structure and Function PDF

    Description

    This quiz explores Unit 1 of Computer Organization and Architecture, covering the evolution of computers, Von Neumann architecture, and various aspects of instruction handling. Understand the fundamental attributes of computer architecture and organization, including instruction sets, interconnection structures, and the evolution of RAM and processor architecture.

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