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Year 10 CS September Assessment Homework
46 Questions
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Year 10 CS September Assessment Homework

Created by
@ClearedBambooFlute

Questions and Answers

Which of the following devices is an example of an embedded system?

  • Personal computer
  • Smartphone
  • Washing machine (correct)
  • Television

    • What is a common characteristic of embedded systems?

  • They are designed to perform multiple complex tasks.
  • They can operate independently from hardware.
  • They require extensive user input.
  • They generally have limited functions. (correct)

    • Which component is responsible for performing mathematical calculations in a CPU?

  • Control Unit
  • Arithmetic Logic Unit (correct)
  • Registers
  • Accumulator

    • In which devices can embedded systems typically be found?

    <p>Automated lights and microwaves</p> Signup and view all the answers

    Which term describes the hardware that controls the execution of instructions in a CPU?

    <p>Control Unit</p> Signup and view all the answers

    Which of the following is NOT a common application of embedded systems?

    <p>Personal laptops</p> Signup and view all the answers

    What do embedded systems typically integrate within their design?

    <p>Real-time processing</p> Signup and view all the answers

    Which part of the CPU stores the address of the next instruction to be fetched?

    <p>Program counter</p> Signup and view all the answers

    Which component of Computer 1 contributes to its potentially faster performance in running a 3D flight simulator?

    <p>Greater number of cores</p> Signup and view all the answers

    What is one potential advantage of having a larger cache size in a CPU?

    <p>Reduces time to access frequently used data</p> Signup and view all the answers

    During the fetch-execute cycle, which event occurs first?

    <p>Fetching instructions from memory</p> Signup and view all the answers

    Which of the following embedded systems is commonly found in modern cars?

    <p>Embedded navigation system</p> Signup and view all the answers

    Why might Computer A with a 3.2 GHz processor perform better than Computer B with a 1.2 GHz processor?

    <p>Higher processing speed per cycle</p> Signup and view all the answers

    What is the definition of an embedded system?

    <p>A computer system designed for a specific task within a larger system</p> Signup and view all the answers

    Which of the following components is least likely to improve CPU performance?

    <p>Higher power consumption</p> Signup and view all the answers

    What aspect of Computer 2 might limit its performance compared to Computer 1 in certain applications?

    <p>Fewer number of cores</p> Signup and view all the answers

    Which component is responsible for storing a single address?

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

    What describes the purpose of Cache in a computer system?

    <p>It holds frequently used instructions.</p> Signup and view all the answers

    What is the main function of RAM in a computer system?

    <p>To store current data and instructions temporarily.</p> Signup and view all the answers

    Which of the following is NOT a type of secondary storage?

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

    Which of the following correctly describes the difference between RAM and ROM?

    <p>RAM is used for temporary storage, while ROM stores permanent data.</p> Signup and view all the answers

    Which statement about the contents of RAM in a satellite navigation system is true?

    <p>It holds copies of open maps and routes.</p> Signup and view all the answers

    Which of the following registers is NOT mentioned in the provided components?

    <p>Instruction Register</p> Signup and view all the answers

    Which data might a smart television store in RAM?

    <p>User settings</p> Signup and view all the answers

    Match the following components with their description:

    <p>CPU = Performs computations and executes instructions RAM = Temporary storage for data and instructions ROM = Permanent storage that retains information Cache = Speeds up data access for the CPU</p> Signup and view all the answers

    Cache size does not affect CPU performance.

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

    Name one component that could improve the performance of a computer, which is not listed in the specifications.

    <p>SSD or Graphics Card</p> Signup and view all the answers

    Match the computer components to their specifications:

    <p>Clock Speed = Determines how fast a processor can execute instructions Cache Size = Stores frequently accessed data for quick retrieval Number of Cores = Indicates how many tasks can be handled simultaneously</p> Signup and view all the answers

    Which embedded system could commonly be found in a car?

    <p>Engine control unit</p> Signup and view all the answers

    Explain why having multiple cores in a CPU may improve processing speed.

    <p>Multiple cores allow for parallel processing, enabling the computer to perform multiple tasks simultaneously.</p> Signup and view all the answers

    The number of cores affects a computer's ability to run multiple applications at once.

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

    Identify three devices, other than a Sat Nav, which contain embedded systems.

    <p>example: washing machine, microwave, smart thermostat</p> Signup and view all the answers

    Embedded systems have limited ______________. They are often built into a ______________ machine.

    <p>functions, smaller</p> Signup and view all the answers

    All embedded systems are larger than traditional computers.

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

    Match the following CPU components or registers with their corresponding definitions:

    <p>CU (Control Unit) = Stores the address of the next instruction to be fetched from memory. MAR (Memory Address Register) = Stores the address of the data to be fetched from or the address where the data is to be stored. ALU (Arithmetic Logic Unit) = Performs mathematical calculations and logical operations.</p> Signup and view all the answers

    What is one example of an automated function found in a car?

    <p>automatic lights or anti-lock braking system</p> Signup and view all the answers

    Which of these devices is NOT typically associated with an embedded system?

    <p>Personal computer</p> Signup and view all the answers

    Two examples of embedded systems are a ______________ and automated ______________ in a car.

    <p>washing machine, lights</p> Signup and view all the answers

    Which of the following components holds the boot-up sequence of a smart television?

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

    Data stored in RAM is not lost when the device is powered off.

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

    What is meant by 'secondary storage'?

    <p>Secondary storage refers to non-volatile storage that retains data even when the device is turned off.</p> Signup and view all the answers

    The ____ stores frequently used instructions.

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

    Match the following types of secondary storage with their characteristics:

    <p>Hard Disk Drive = Magnetic storage with high capacity Solid State Drive = Flash memory with no moving parts USB Flash Drive = Portable and removable storage Optical Disc = Uses laser technology for storage</p> Signup and view all the answers

    Identify one register not mentioned in the components list and describe its purpose.

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

    Which of the following is a type of volatile memory?

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

    Cache memory is slower than RAM.

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

    Study Notes

    Assessment Overview

    • Duration: 60 minutes
    • Total marks available: 50

    Computer Specifications

    • Computer 1 has a clock speed of 1 GHz, 4 cores, and a cache size of 2 MB.
    • Computer 2 has a clock speed of 1.4 GHz, 2 cores, and a cache size of 2 MB.
    • Performance of a CPU can be affected by clock speed and number of cores.

    Embedded Systems

    • An embedded system is a specialized computing system designed for specific control functions within a larger system.
    • Examples of embedded systems include satellite navigation and parking sensors in cars.

    Core and Performance

    • A 3.2 GHz processor in Computer A generally outperforms a 1.2 GHz processor in Computer B due to higher clock speed, affecting processing rate.

    Fetch-Execute Cycle

    • Events during the fetch-execute cycle include fetching instructions from memory and executing them.

    Common Embedded Systems

    • Examples of devices with embedded systems:
      • Washing machines
      • Smart home devices
      • Digital cameras

    CPU Components

    • Common CPU components include:
      • Control Unit (CU) for managing operations.
      • Memory Address Register (MAR) stores the address of the next instruction.
      • Memory Data Register (MDR) stores the data being transferred.

    RAM vs. ROM

    • RAM (Random Access Memory): Temporary storage that loses contents when power is off.
    • ROM (Read-Only Memory): Permanent storage that retains data even when power is off.

    Smart Television Data Storage

    • RAM can store frequently accessed data, like open applications or user settings.
    • ROM can store essential software such as boot sequences.

    Types of Storage

    • Common types of secondary storage include:
      • Hard Drives
      • SSDs (Solid State Drives)
      • USB flash drives

    Definition of Secondary Storage

    • Secondary storage refers to non-volatile storage that retains data after power is turned off, such as hard drives and USB drives.

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    Description

    Test your knowledge about embedded systems and CPU performance characteristics with this quiz. Explore concepts such as clock speed, core count, and the fetch-execute cycle. Perfect for students and enthusiasts in computer science and engineering.

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