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.