Advanced Computer Architectures Quiz
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Questions and Answers

Which of the following factors influences execution time?

  • Memory capacity
  • Arithmetical operations (correct)
  • Input/output interfaces
  • All of the above

    • The execution time of multiplying is faster than that of adding.

    False

    What is the formula for calculating average execution time?

    Σ tinstruction(i)*pinstruction(i)

    In dependable systems, the execution time for instructions is __________.

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

    Match the performance features with their descriptions:

    <p>Execution time = Time taken for operations and tasks Reaction time = Speed of response to external events Memory capacity = Amount of data that can be stored Fault tolerance = System's ability to continue operation despite errors</p> Signup and view all the answers

    Which performance feature is concerned with the predictability and reliability of a system?

    <p>Fault tolerance</p> Signup and view all the answers

    Virtual memory is a type of memory that physically exists outside the computer.

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

    Name one performance feature that relates to the shape of a system.

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

    The __________ indicates the total cost of a system including operational and purchase costs.

    <p>absolute cost</p> Signup and view all the answers

    Which type of memory acts as a high-speed storage area for frequently accessed data?

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

    Which of the following architectures focuses on improving instruction execution efficiency by using multiple instruction pipelines?

    <p>Pipelined architectures</p> Signup and view all the answers

    RISC architectures use complex instruction sets to optimize computer performance.

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

    Name one type of memory design studied in advanced computer architectures.

    <p>ROM, SRAM, DRAM, or SDRAM</p> Signup and view all the answers

    The computer component responsible for executing arithmetic and logic operations is called the _____.

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

    Match the following components with their functionalities:

    <p>ALU = Performs arithmetic and logical operations CPU = Controls all computer operations ROM = Non-volatile memory for storing firmware SRAM = Fast memory used for cache memory</p> Signup and view all the answers

    Which of the following is NOT a factor that influences the performance of computer systems?

    <p>User interface design</p> Signup and view all the answers

    Parallel architectures utilize a single core for processing tasks.

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

    What is the main focus of the course on advanced computer architectures?

    <p>Design of computer components and systems, increasing speed and efficiency.</p> Signup and view all the answers

    One of the design strategies that aims to improve CPU performance is called _____ architectures.

    <p>super-pipeline</p> Signup and view all the answers

    Which type of memory is best suited for applications requiring high-speed access?

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

    Signup and view all the answers

    Study Notes

    Course Information

    • Course Title: Structure of Computer Systems (Advanced Computer Architectures)
    • Instructor: Gheorghe Sebestyen
    • Lab Assistants: Anca Hangan, Madalin Neagu, Ioana Dobos

    Course Objectives and Content

    • Design of computer components and systems
    • Study of methods for increasing computer system speed and efficiency
    • Study of advanced computer architectures

    Course Content

    • Factors influencing computer system performance (e.g., technological trends)
    • Computer arithmetic (ALU design)
    • CPU design strategies (e.g., pipeline architectures, super-pipelines, parallel architectures, RISC architectures, microprocessors)
    • Interconnection systems
    • Memory design (ROM, SRAM, DRAM, SDRAM, cache memory, virtual memory)
    • Technological trends

    Performance Features

    • Execution time (execution time of operations, arithmetical operations, simple and complex instructions)
    • Reaction time to external events (best effort, interactive systems, real-time systems, worst case execution time (WCET))
    • Memory capacity and speed (cache memory, internal memory, external memory)
    • Input/output facilities (interfaces)
    • Development facilities
    • Dimension and shape
    • Predictability, safety and fault tolerance
    • Costs (absolute and relative)

    Physical Performance Parameters

    • Clock signal's frequency (a good measure of performance, depends on the integration technology, transistor dimension, path lengths, supply voltage, relative distance between high and low states, clock period, complex CPUs)
    • Execution time of a program (more realistic, comparative analysis, benchmarks)
    • Other metrics (number of transactions per second, communication bandwidth, context switch time)

    Principles for Performance Improvement

    • Moore's Law (doubling of transistors every two years)
    • Amdahl's Law (speedup limited by the fraction of the program that can't be parallelized)
    • Locality principles (time locality, space locality)
    • Parallel execution principle (data level, instruction level, thread level, application level)

    Improving CPU Performance

    • Execution time (Instr_no / IPS)
    • CPI (cycles per instruction)
    • Methods to reduce execution time (reduce frequency of instructions, reduce CPI, reduce clock signal period, increase frequency)
    • Reduce instruction count (improve algorithms, more powerful instructions using multiple operations)
    • Reduce CPI (pipeline execution methods, simplify CPU architecture)
    • Reduce clock period (reduce dimensions of switches)

    Conclusions

    • Ways of increasing processor speed (less instructions, simpler instructions, smaller CPI, parallel execution at different levels, higher clock frequency).

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    Related Documents

    Structure of Computer Systems (Advanced Computer Architectures) PDF

    Description

    Test your knowledge on advanced computer architectures with this quiz. Explore the design of computer components, CPU strategies, memory systems, and factors influencing performance. Perfect for students looking to deepen their understanding of computer system efficiencies.

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