1.3 Recognize Computing Devices

1.3.1 Computers

General Overview

  • All computing devices consist of a motherboard, processor, and storage.

  • Differences between computers and mobile devices lie in connection options.

Desktops (PCs)

  • Designed for use on or near a desk.

  • Include peripherals such as monitor, keyboard, mouse, and speakers.

  • Easier to repair and upgrade due to size.

  • Built with durable parts for longevity.

  • Require external power; no battery, must be plugged in.

  • Tend to be more powerful for high-demand tasks (e.g., gaming).

Notebooks & Laptops

  • Compact form with all components in one slim case.

  • Advantages: lightweight, energy-efficient, battery-operated.

  • Screens are integrated, enhancing portability.

Laptops Overview

  • Touchscreen Capabilities: Some laptops come with touchscreen functionality, enhancing usability for video calls.

  • Connectivity: Most have wireless Internet capability.

  • Application Compatibility: Can run the majority of apps comparable to desktop computers.

  • Maintenance Challenges: Harder to repair due to tightly packed components within the case.

  • Cost: High-end models can be more expensive than similar desktop computers.

  • Computational Power: Generally less computing power compared to equivalent desktops.

  • Gaming Performance: Gaming laptops feature strong video cards, making them nearly as capable as desktops for gaming.

Hybrid Laptops

  • Definition: Hybrid or 2-in-1 laptops combine features of tablets and traditional laptops.

  • Design Features: Include a touchscreen and a keyboard; can convert to work like a tablet by flipping the screen.

  • Advantages:

    • Use the same operating systems as standard laptops.

    • Typically feature stronger processors than typical tablets.

  • Disadvantages: Generally more expensive than standard laptops or tablets.

Servers

  • Powerful computers for storing information and performing tasks for multiple users simultaneously.

  • Common tasks: hosting websites, handling emails, managing databases.

  • Primarily used by businesses, not for home use.

  • Characteristics:

    • Higher memory and storage capacity.

    • More processing power compared to desktops/workstations.

    • Built-in backups for important components (extra hard drives, power supplies).

1.3.2 Mobile Devices

  • Handheld devices commonly referred to as "tablets."

  • Tablets:

    • Mini computers with touchscreen interfaces, lacking physical keyboards.

    • Limited upgrade options for hardware.

    • Usage: watching videos, browsing the Internet, using applications.

    • Position between smartphones and laptops in functionality.

  • E-readers:

    • Feature e-ink screens for clear visibility in various lighting conditions.

    • Low battery consumption.

    • Generally lower power and screen quality compared to tablets.

Wearable Devices

  • Smartwatches

    • Connect to smartphones for full functionality.

    • Features include:

    • Reading and replying to text messages.

    • Making phone calls.

    • Assisting with workouts.

    • Playing music.

    • Locating lost phones.

    • Time display.

1.3.3 Gaming Console Devices

  • Specialized computers solely for gaming.

  • Key Components:

    • Powered by a video card; limited storage upgrades.

    • Uses a controller for gameplay.

    • Contains CPU, memory, and storage.

  • Distinction:

    • Equipped with a Graphics Processing Unit (GPU) for enhanced visuals.

    • Provides high-definition display utilizing ray tracing for realistic lighting and reflections.

Augmented Reality (AR) and Virtual Reality (VR)

  • AR: Integrates computer-generated images into the real world, allowing users to see both real and digital elements.

Virtual Reality (VR)

  • Immerses users in a new world

  • Helps individuals confront phobias safely

1.3.4 Internet of Things (IoT)

  • Integrates Internet capabilities into everyday devices

  • Examples of popular IoT devices:

    • Lightbulbs

    • Security cameras

    • Doorbells

    • Smart Speakers

    • Smart TVs

    • Smartwatches

    • Home appliances

Enhanced Device Capabilities

  • Manufacturers add sensors to devices to improve functionality

  • Medical devices (e.g., glucose monitors) can transmit data to healthcare providers, aiding in treatment plans

Network Connectivity

  • IoT devices connect to home networks and access the Internet

  • Importance of securing devices to protect sensitive data

IoT Televisions

  • Functions: watch videos, listen to music, play games, browse online

  • Streaming devices (e.g., Roku, Fire sticks) operate similarly to smart TVs

Smart Devices Overview

  • Voice-Activated Speakers

    • Interact through voice (e.g., weather, sports, music)

    • Can connect multiple devices

  • IoT Lightbulbs

    • Control via phone app

    • Functions: On/off, brightness adjustment, color changing, timer setting

  • IoT Security Devices

    • Security Cameras

    • Monitor home/business, record movement

    • Smart Doorbells

    • Features: Hear notifications and view video of visitors

  • Wearable Devices

    • Smartwatches

    • Functions: Make calls, send texts, play music

    • Sync with smartphones or fitness equipment

    • Track fitness (walking, running) and sleep patterns

    • Fitness Devices

    • Wearable technology for health monitoring