Hardware Week 1: Basic Computer Concepts
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Questions and Answers

What is a computer?

A programmable electronic device that stores, retrieves, and processes data through a set of instructions (programs).

What are the major components that make up a computer?

  • Keyboard, Mouse, Monitor, Hard Drive, CPU, RAM
  • Motherboard, CPU, RAM, Graphics Card, Hard Drive, Power Supply
  • System Board, Input Devices, Processor, Storage, Output Devices, Power Supply (correct)
  • Software, Hardware, Operating System, Applications, Data
  • Hardware refers to the physical components of a computer, while software refers to the instructions that tell the hardware what to do.

    True (A)

    What do device drivers do?

    <p>Device drivers are a type of software that allows your computer to communicate with and control the hardware devices connected to it.</p> Signup and view all the answers

    What is firmware?

    <p>Firmware is a built-in programmable logic (software) attached to a specific hardware component.</p> Signup and view all the answers

    What is a platform?

    <p>A platform is the environment created by the operating system that allows applications to run on a hardware device, acting as an interface between applications and the operating system.</p> Signup and view all the answers

    The basic unit of computer capacity is the bit, which can have the value of either 0 or 1.

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

    Which of these is NOT a unit of computer capacity?

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

    What is the main difference between primary and secondary storage?

    <p>Primary storage (RAM) is temporary, used for active programs and files currently in use, while secondary storage (hard drive) is permanent, for storing files when not in use.</p> Signup and view all the answers

    Match the following types of memory with their characteristics:

    <p>RAM = Volatile, fast, used for active programs and files ROM = Non-volatile, slow, stores boot-up instructions Cache = Fast, small, stores frequently accessed data from RAM</p> Signup and view all the answers

    What is the purpose of a storage device?

    <p>Storage devices are used for storing, porting, or extracting data files. They can be used to store information both temporarily and permanently.</p> Signup and view all the answers

    What are the two main types of storage?

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

    What is the function of the CPU (Central Processing Unit)?

    <p>The CPU is responsible for performing calculations and logical operations, essentially the brain of the computer. It controls everything that happens within the computer.</p> Signup and view all the answers

    Processor speed is measured in Hertz (Hz), representing the number of clock cycles per second.

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

    What is the purpose of a Kahoot?

    <p>Kahoot is a game-based learning platform that allows teachers and educators to create interactive quizzes and surveys for their students.</p> Signup and view all the answers

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    Flashcards

    What is a computer?

    A programmable electronic device that stores, retrieves, and processes data through a set of instructions.

    What is hardware?

    The physical components of a computer system that you can see and touch, such as the motherboard, processor, memory, and storage devices.

    What is software?

    A set of instructions or commands that tell a computer what to do.

    What is a device driver?

    A software program that allows the computer to communicate with and control hardware devices.

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    What is firmware?

    A built-in programmable logic (software) attached to a specific hardware that controls how it functions.

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    What is a platform?

    The environment created by the operating system that allows applications to run on a hardware device. It's the interface between applications and the operating system.

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    What is a bit?

    A unit of information that represents a binary digit, having a value of either 0 or 1.

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    What is memory?

    The physical space within a computer that temporarily stores digital data and instructions for quick access and use by the computer.

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    What is RAM (Random Access Memory)?

    The most common type of memory; it's temporary storage for data actively being used by programs.

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    What is ROM (Read Only Memory)?

    A type of memory that stores permanent instructions needed to boot up the computer.

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    What is a storage device?

    Hardware that is used for storing, porting, or extracting data files; it can store information both temporarily and permanently.

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    What is local storage?

    Storage that resides internally or externally within a computer, storing programs and user files.

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    What is remote storage?

    Storage that resides on other computers in a network or in the cloud, allowing access to data from multiple locations.

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    What is primary storage?

    Storage that resides within the computer, primarily for operating system and program files. Usually refers to hard disk drives (HDD) or solid-state drives (SSD).

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    What is secondary storage?

    Storage that resides outside of the computer, primarily for storing user files and backups. Usually refers to external hard disks, USB drives, or cloud storage.

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    What is a hard disk?

    A magnetic disk that stores data persistently and is accessed by a read/write head.

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    What is a flash drive?

    A portable storage device with a USB interface, used to store and transfer data.

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    What is an SD card?

    Digital storage cards used in various devices like cameras and smartphones.

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    What is an optical disc?

    Optical discs like CD-ROMs or DVDs that store data digitally.

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    What is a CPU?

    The central processing unit of a computer, responsible for performing calculations and logical operations.

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    What is Hertz?

    The unit of measurement for processor speed, representing the number of cycles per second that the CPU can execute.

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    What is an evolutionary diagram of data storage?

    A visual representation of the evolution of data storage technologies through time.

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    What is SSD (Solid State Drive)?

    A digital storage technology that uses flash memory to store data, known for its fast access speeds and durability.

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    What is HDD (Hard Disk Drive)?

    A digital storage technology that uses magnetic disks to store data, known for its lower cost but slower access speeds compared to SSDs.

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    Study Notes

    Hardware - Week 1

    • Basic Computer Concepts
    • Learning Objectives:
      • Understand the definition of a computer.
      • Understand device drivers, firmware, and platform.
      • Measure computer performance.
      • Explore memory and storage.

    What is a Computer?

    • A programmable electronic device.
    • Stores, retrieves, and processes data using a set of instructions (programs).

    What Makes a Computer?

    • System Board
    • Processor
    • Input Devices
    • Output Devices
    • Storage
    • Power Supply

    Another Definition of Hardware

    • A collection of electrical and mechanical parts.

    For a Computer to Work

    • Hardware: Physical components you can see and touch (e.g., motherboard, hard drive).
    • Software: Set of instructions that tell the hardware what to do; commands and data that tells the computer how to perform tasks (e.g., operating system, applications).

    How a Computer Works

    • Data flows from input to storage, to processing, and finally to output.
    • The processing unit interprets commands and performs calculations.
    • Storage holds the information indefinitely

    Input, Process, Output

    • Device Drivers: Software that enables communication between hardware and software.
    • Firmware: Built-in, programmable logic attached to specific hardware; controls how hardware functions.
    • Platform: Environment created by the operating system; an interface between applications and operating systems, allowing functions to run and be executed.

    Measuring Capacity

    • Binary Digit (Bit): Fundamental unit of computer data; has a value of 0 or 1.
    • Different units represent various amounts of bits (e.g., Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte).
    • Measurements for storage and capacity.

    Measuring Capacity - Units

    • Bit: single binary digit
    • Byte: eight bits
    • Kilobyte (KB): 1,024 bytes
    • Megabyte (MB): 1,024 KB (1 million bytes)
    • Gigabyte (GB): 1,024 MB (1 billion bytes)
    • Terabyte (TB): 1,024 GB (1 trillion bytes)
    • Petabyte (PB): 1,024 TB (1 quadrillion bytes)

    Memory and Storage

    • Memory: Temporary storage for data actively in use.
    • Storage: Permanent storage for data not currently in use.

    What is Memory?

    • Physical space that temporarily stores digital data and instructions which are accessed quickly.
    • Often refers to the computer's primary system memory (RAM).
    • RAM is a chip within the computer that temporarily holds active programs

    Types of Memory

    • RAM (Random Access Memory): Volatile data storage; data lost when power is removed, high speed
    • ROM (Read-Only Memory): Permanent data storage; data remains even when power is off; slower speed

    RAM vs. ROM (Table)

    Feature RAM ROM
    Data persistence Volatile (lost when power off) Non-volatile (remains even when power off)
    Speed Faster Slower
    Modifiable Read, erase, and modify Read-only
    Function Used by CPU for active programs and instructions Needed to bootstrap or start up the computer during startup and some system functions

    What is Storage?

    • Hardware used for storing, copying, and retrieving data files, both temporarily and permanently.

    Types of Storage

    • Local Storage: Internal storage (inside the computer) and external devices.
    • External Storage: Other computers in a network, Cloud storage

    Primary and Secondary Storage

    • Primary Storage (Main Memory): Directly accessed by the processor unit, temporary storage.
      • Examples: RAM, ROM, cache, registers.
    • Secondary Storage (Auxiliary Memory): Data transferred to main memory, usually permanent unless deleted.
      • Examples: Hard disks, flash drives, optical discs.

    Storage Devices

    • Hard Disks
    • External Drives
    • Flash Drives
    • Secure Digital (SD) Cards
    • Optical Discs and Drives

    Measuring Frequency (Speed)

    • CPU (Central Processing Unit): Chip that performs calculations and logical operations.
    • Hertz (Hz): Unit to measure the processor's speed; measures cycles per second.
    • Kilo - Mega - Giga - Tera Hertz units represent various amounts of cycles per second.

    Activity

    • Kahoot activity.

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    Related Documents

    Hardware Lecture 1 PDF

    Description

    Dive into the foundational concepts of computer hardware in this week 1 quiz. Learn about the essential components that make up a computer, including the system board, processor, and storage. Understand the role of hardware and software in computer functionality through various definitions and concepts.

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