Computer Architecture and Design Chapter 8 & 10
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Questions and Answers

Which of the following is NOT a primary function of the CPU?

  • Performing arithmetic and logical operations
  • Managing virtual memory allocation (correct)
  • Fetching instructions from memory
  • Executing instructions
  • What is the primary role of registers within the CPU?

  • To permanently store data and instructions
  • To manage the flow of data between the CPU and external devices
  • To provide a backup in case the main memory fails
  • To act as high-speed storage locations for frequently accessed data (correct)
  • Which of the following is a critical characteristic of primary memory (RAM)?

  • High storage capacity
  • Relatively slow access times compared to registers
  • Non-volatility, retaining data even when power is off
  • Volatility, data is lost when power is removed (correct)
  • During the Fetch-Execute cycle, what is the role of the 'Fetch' stage?

    <p>Retrieving the next instruction from memory (A)</p> Signup and view all the answers

    What is the purpose of a 'bus' in a computer system?

    <p>To facilitate data transfer between different components (A)</p> Signup and view all the answers

    Which instruction type is responsible for altering the sequence of program execution based on a certain condition?

    <p>Program Control Instructions (D)</p> Signup and view all the answers

    Which of the following describes the function of a stack instruction?

    <p>Instructions that save and restore data using a LIFO structure (D)</p> Signup and view all the answers

    What is a key characteristic that distinguishes a superscalar processor from a scalar processor?

    <p>Superscalar processors can execute multiple instructions in parallel (D)</p> Signup and view all the answers

    Which memory access technique improves performance by fetching data in larger blocks?

    <p>Wide Path Memory Access (D)</p> Signup and view all the answers

    What is the primary function of memory interleaving?

    <p>Splitting memory addresses across multiple memory banks to increase bandwidth. (B)</p> Signup and view all the answers

    Which of the following is NOT a typical use of interrupts in a computer system?

    <p>Switching between different user accounts. (A)</p> Signup and view all the answers

    What is the main advantage of using Direct Memory Access (DMA) for I/O operations?

    <p>It enables data transfers between memory and peripherals without CPU intervention, freeing up the CPU for other tasks. (D)</p> Signup and view all the answers

    Which storage medium provides non-volatile, rewritable memory using floating-gate transistors?

    <p>Solid-State Drive (SSD) (B)</p> Signup and view all the answers

    What is the function of a Graphical Processing Unit (GPU)?

    <p>To accelerate the creation of images in a frame buffer intended for output to a display device. (B)</p> Signup and view all the answers

    What type of printer creates images by selectively charging areas on a drum to attract toner?

    <p>Laser Printer (A)</p> Signup and view all the answers

    In the hierarchy of storage, which of the following is generally characterized by the highest cost per bit?

    <p>CPU Cache (D)</p> Signup and view all the answers

    Which of the following CPU design techniques involves executing multiple instructions simultaneously?

    <p>Superscalar processing (D)</p> Signup and view all the answers

    What is the primary function of cache memory?

    <p>To accelerate memory access (A)</p> Signup and view all the answers

    Which of the following terms describes a CPU architecture that incorporates multiple processing cores on a single chip?

    <p>Multiprocessing (D)</p> Signup and view all the answers

    Which technology has become increasingly important as storage in powerful tablets and smartphones?

    <p>Solid-state storage (A)</p> Signup and view all the answers

    In modern computing, what is the role of graphical processing units (GPUs)?

    <p>To enhance visual and graphic output (A)</p> Signup and view all the answers

    Which interconnection technique, focused on improving computer performance and reliability, involves linking multiple computers?

    <p>Grid computing (C)</p> Signup and view all the answers

    In the context of mobile devices, what type of sensor is used to determine orientation and angular velocity?

    <p>Gyroscope (A)</p> Signup and view all the answers

    What is the function of near-field communication (NFC) sensors in mobile devices?

    <p>To enable short-range wireless communication (D)</p> Signup and view all the answers

    According to content, what is a direct advantage of understanding how computer systems operate?

    <p>It enables you to use the machine more effectively. (D)</p> Signup and view all the answers

    What benefit does a user gain from understanding the capabilities and limitations of computer systems?

    <p>A deeper understanding of the commands being used. (B)</p> Signup and view all the answers

    What outcome is most likely when a user better understands the operations of program applications, according to the content?

    <p>The user will be able to make better informed decisions about computer equipment and application programs. (B)</p> Signup and view all the answers

    In what way does understanding computer systems benefit a user interacting with system analysts and programmers?

    <p>It improves the user's ability to communicate with them effectively. (B)</p> Signup and view all the answers

    How can programmers benefit from understanding machines?

    <p>It enables programs to operate more effectively. (D)</p> Signup and view all the answers

    What is the implication of choosing the appropriate data type for a variable in programming?

    <p>It results in significantly faster performance. (C)</p> Signup and view all the answers

    What impact does system understanding have on a home network user?

    <p>It helps the user understand the most efficient way to 'go online'. (C)</p> Signup and view all the answers

    What is one of the advantages of understanding computer systems as highlighted in the content?

    <p>The knowledge of when it is preferable to do a job manually versus using a computer. (C)</p> Signup and view all the answers

    What is the key difference between the two examples of IT systems described?

    <p>The source of input data. (B)</p> Signup and view all the answers

    What is a crucial requirement for network interfaces to ensure successful message exchange between computers in an IT system?

    <p>Compliance with standard agreements (protocols). (B)</p> Signup and view all the answers

    Which of the following factors primarily determine the form that network interconnectivity takes within an IT system?

    <p>Performance, convenience, and cost. (D)</p> Signup and view all the answers

    Which of the following is NOT a component that characterizes the work performed by an individual computer system within an IT system?

    <p>Storage. (A)</p> Signup and view all the answers

    In the context of Web browser applications, which element dictates how the data received is to be processed?

    <p>HTML or XML. (B)</p> Signup and view all the answers

    What is the most accurate definition of an IT system?

    <p>One or more computer systems connected using some type of network interconnectivity. (B)</p> Signup and view all the answers

    Why are standard protocols important for network interfaces in an IT system?

    <p>To ensure messages are understood by all computers during communication. (C)</p> Signup and view all the answers

    What is an accurate description about networks within an IT system?

    <p>The interface requirements must be met, and are determined by such characteristics as performance, convenience, and cost. (B)</p> Signup and view all the answers

    Which concept is NOT included in the section on memory management?

    <p>File Protection (A)</p> Signup and view all the answers

    What is the purpose of process scheduling in an operating system?

    <p>To determine the sequence in which processes execute (D)</p> Signup and view all the answers

    Which of the following best describes page replacement algorithms?

    <p>Strategies for determining which pages to remove from memory (A)</p> Signup and view all the answers

    What is the significance of the bootstrap in an operating system?

    <p>It initiates the loading process of the operating system (D)</p> Signup and view all the answers

    Which statement about virtual storage is incorrect?

    <p>It eliminates the need for physical memory entirely. (D)</p> Signup and view all the answers

    What do working sets in the context of memory management refer to?

    <p>The collection of pages actively being used by a process (A)</p> Signup and view all the answers

    Which of the following is a feature of nonpreemptive dispatch algorithms?

    <p>They yield control only when a process is finished. (B)</p> Signup and view all the answers

    What is one of the roles of storage area networks (SANs)?

    <p>To centralize data storage for better accessibility (C)</p> Signup and view all the answers

    Flashcards

    CPU Components

    The parts that make up a Central Processing Unit, including ALU, control unit, and registers.

    Registers

    Small storage locations within the CPU that hold data temporarily for processing.

    Memory Unit

    The component that stores data and instructions for the CPU to access during processing.

    Fetch–Execute Cycle

    The process by which a CPU retrieves an instruction from memory and executes it.

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    Data Movement Instructions

    Instructions that allow the CPU to move data between memory and registers.

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    Arithmetic Instructions

    Instructions used for mathematical calculations like addition and subtraction.

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    Bus Characteristics

    The features and specifications of buses that transfer data within the computer.

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    CPU Architectures

    The design frameworks that define how a CPU operates and organizes its components.

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    File Systems

    Structures that manage how data is stored and retrieved on storage devices.

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    Volumes

    Logical storage units created from disks that can contain file systems.

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    Partitions

    Divisions of a storage device that create separate sections for data management.

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    Storage Pools

    A collection of storage resources that can be allocated for various uses.

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    Tree-Structured Directories

    Hierarchical organization of files resembling a tree with branches and leaf nodes.

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    Virtual Storage

    A memory management technique that allows use of disk space as additional memory.

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    Page Faults

    An event that occurs when a program tries to access a page not currently loaded in memory.

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    CPU Scheduling

    The method by which an operating system allocates CPU time to processes.

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    Cache Memory

    A small, high-speed storage area that temporarily holds frequently accessed data to speed up memory access.

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    Pipelining

    A CPU design technique where multiple instruction phases are overlapped to improve processing efficiency.

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    Superscalar Processing

    A CPU architecture that allows multiple instructions to be executed simultaneously in one cycle.

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    Multiprocessing

    Utilizing two or more CPUs within a single computer system to improve performance and processing power.

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    System on a Chip (SoC)

    An integrated circuit that incorporates all components of a computer or other electronic systems onto a single chip.

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    Clustering

    Connecting multiple computers to work together as a single system for increased performance and reliability.

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    Grid Computing

    A distributed architecture that connects multiple computer systems to solve complex problems collaboratively.

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    GPUs (Graphics Processing Units)

    Specialized processors designed to accelerate graphics rendering and computational tasks, especially in video and image processing.

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    Wide Path Memory Access

    A method to improve data transfer rates by using multiple memory paths.

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    Memory Interleaving

    A technique that spreads memory addresses across multiple memory modules to increase speed.

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    Programmed I/O

    I/O operations managed through specific commands written in the program.

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    Interrupts

    Signals that temporarily halt a running program to attend to an event.

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    Direct Memory Access (DMA)

    A method allowing certain hardware to access main memory independently of the CPU.

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    Optical Disk Storage

    A storage medium that uses laser technology to read and write data.

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    Graphical Processing Units (GPUs)

    Specialized hardware designed to accelerate graphics rendering and processing.

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    Understanding Computer Systems

    Comprehending how computers work enhances efficiency in usage.

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    Capabilities of a Computer

    The strengths and limitations that define what a computer can do.

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    Operating System Knowledge

    Understanding the OS allows better usage and control of computer resources.

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    Manual vs. Computer Tasks

    Knowing when to use a computer versus doing tasks manually.

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    Going Online Efficiently

    Understanding the best methods to connect to the internet.

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    Communication with Specialists

    Improving interactions with programmers and analysts by understanding systems.

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    Choosing Data Types

    Selecting appropriate data types affects program performance and efficiency.

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    Configuration for Efficiency

    Setting up software and systems to maximize performance and speed.

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    Web Browser

    A software application used to access information on the internet.

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    Web Server

    A server that hosts websites and serves them to browsers.

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    Communication Channel

    The medium through which data is transmitted between computers.

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    HTML

    A markup language used to create web pages and applications.

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    Input in IT Systems

    Data received by the system for processing, often via devices or channels.

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    Processing in IT Systems

    The operations performed on data to convert it into meaningful output.

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    Output in IT Systems

    The results produced by processing data; it could be display, print, etc.

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    Protocols

    Standard agreements that govern how data is transmitted over a network.

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    Study Notes

    Contents Overview

    • Chapter 7: CPU and Memory (page 194)
    • Chapter 8: CPU and Memory Design (page 234)
    • Chapter 9: Input/Output (page 266)
    • Chapter 10: Computer Peripherals (page 294)
    • Chapter 17: File Systems and Storage (page 566)
    • Chapter 18: Internal Operating System (page 586)

    Chapter 8 Details

    • Chapter 8 expands on Chapter 7, exploring advanced CPU and memory features.
    • It covers various CPU architectures.
    • Techniques for improving memory access, particularly cache memory.
    • Introduction to current CPU organization, design, and implementation (pipelining, superscalar processing).
    • Discusses multiprocessing (multicore).
    • Removed outdated topics (VLIW, EPIC architectures).

    Chapter 10 Details

    • Significant update for mobile devices and tablets.
    • Expanded coverage of solid-state storage due to growing importance.
    • New section on graphical processing units (GPUs).
    • Removal of CRT displays.
    • Reduced discussion on text-mode display and raster scans.
    • Printers now focus on laser and inkjet technologies.
    • Section on user input devices includes touch screens, voice input, and additional mobile sensors (GPS, accelerometers, gyroscopes, magnetic field sensors, NFC).

    Chapter 11 Details

    • Updated to reflect modern systems (mobile systems, changed bus architecture).
    • Includes the Intel Haswell architecture and System on a Chip.
    • Removed Firewire; introduced Thunderbird port.
    • Addresses computer interconnection to improve performance and reliability (clustering, grid computing).

    Chapter 1: Computers and Systems

    • Students are learning computer systems to be better professionals or users.
    • Understanding computer systems is beneficial for better use & awareness of capabilities/limitations.
    • Users gain better understanding of commands, program operations, and operating systems.
    • Users can make better decisions about computer equipment and programs.
    • Users can understand better when manual or computer methods are preferable.
    • Programmers can create more efficient programs by understanding machine characteristics.
    • Appropriate data type selection leads to faster program performance.

    Chapter 1 Introduction (Specific Example of Web Browser)

    • Input source: Communication channel (e.g., web).
    • Input data: HTML or XML for processing.
    • Output: Processed data displayed.
    • Key Elements in All IT Systems:
      • Multiple computer systems interconnected by a network.
      • Networks use protocols for communication (standard agreements).
      • Individual computer systems process input and produce output.

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    Quiz Team

    Description

    This quiz covers key concepts from Chapters 8 and 10, focusing on CPU and memory design as well as updates on computer peripherals. It delves into advanced CPU architectures, memory access techniques, and the relevance of modern solid-state storage and GPUs. Test your understanding of these essential topics in computer science.

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