RV

1_3 HardwareRecommendations

Hardware Recommendations for Computers

Module 1.3 Overview

  • Focus on the integration of computers in everyday life and their significance in various applications.

  • Target audience: Grade 12 students studying Computer Applications Technology in the 2nd Edition textbook.

Key Content Areas

  • Buying a Computer

  • The System Unit

  • Devices that Connect to the Computer

  • Devices for Disabled Users

  • The Value of ICT

  • New Technology

  • Test and Improve

Buying a Computer

General Considerations

  • The necessity of mobility and hardware specs of intended software should be evaluated.

  • Current specifications include entry-level and advanced computers.

  • Check for a legal operating system.

  • Spend within your budget, focusing on:

    • Type of processor

    • Installed RAM

    • Storage capacity

The System Unit

CPU/Processor

  • The core component responsible for running programs and processing data.

  • Multiple cores enhance multitasking capabilities.

  • Measured in Gigahertz (GHz), brand differences include AMD and Intel.

    • Entry-level processors are suitable for general tasks;

    • Power users require advanced CPUs.

Memory (RAM)

  • Temporary storage for active data and programs.

  • Access to more than 4 GB of RAM requires a 64-bit operating system.

  • Terms like DIMMS, DDR3, or DDR4 are used to define RAM types.

    • More RAM aids performance, especially for intensive tasks like video editing.

Hard Disk Drive (HDD)

  • The main storage area for data and software.

  • Drives are identified by capacity and terms such as SATA and RPM.

  • Solid State Drives (SSDs) use flash technology for faster performance.

    • Media-intensive users need larger storage capacities.

Video Card

  • Essential for 3D graphics and gaming, separates processing power for graphics.

  • Entry-level computers often utilize integrated graphics in CPUs.

DVD Drive

  • Optical drive used for reading, writing CDs and DVDs; becoming less crucial.

  • Often found as multi-drives for comprehensive functionality.

Ports

  • Connect external devices like USB, Thunderbolt for high-speed data, and network connections.

  • WiFi is commonly integrated but not classified as a port.

Case Design

  • Limited choices for desktop cases unless custom-built.

  • The case's design affects cooling and the capacity for component installation.

Devices that Connect to the Computer

Input Devices

  • Mouse and Keyboard

    • Ergonomically designed versions reduce repetitive strain injuries (RSI).

    • Choices of wireless or cabled options based on user preference.

    • Laptop users typically rely on built-in touchpads.

Output Devices

  • Monitors/Screens

    • The most common output device; availability of touch-screen options.

    • Power users may require larger displays or multiple monitor setups.

Printers

  • Important for hardcopy output; considerations include:

    • Running costs, speed, and print quality (dpi).

    • Multi-functionality is preferred for home or small office users.

Storage Devices

  • Flash Drives

    • Simplest for data transfer and backups.

  • External Hard Drives

    • Necessary for large file storage, especially for power users.

Scanners

  • Image scanners and barcode scanners are available.

  • Important for users needing to convert documents to editable formats.

Devices for Disabled Users

  • Inclusive technologies such as Braille keyboards and magnification devices for the visually impaired.

  • Alternatives for hearing impairments and motor control issues including adapted input devices.

The Value of ICT

Key Benefits

  • Enhances efficiency by reducing costs and effort.

  • Boosts productivity through effective time management.

  • Improves accuracy to prevent errors in data processing.

Accessibility in ICT

  • Provides global access to information and resources.

  • Facilitates remote surgeries, distance education, and innovative banking solutions.

  • Focus on making technology user-friendly for all, including disabled individuals.

New Technology Trends

Understanding New Technologies

  • Anticipate smaller, cheaper, faster, and more powerful devices.

  • Designed for mobility with longer battery lives and constant connectivity.

  • Incorporation of advanced sensors for improved input/output experiences.

Testing and Improvement

  • Engagement in self-assessment and understanding of hardware responsibilities is recommended.