1_1 ComputersEverydayLives

Computers in Our Everyday Lives

Overview

• Introduction to the role of computers in daily life, focusing on their impact and integration.

• Module 1.1 is a study resource tailored for Grade 12 Computer Applications Technology.

Why We Use Computers

Efficiency, Accuracy, and Reliability

• Efficiency: Computers save significant time, labor, and resources.

• Accuracy: High precision ensured by quality programming and data, particularly evident in mass production contexts.

• Reliability: Computers perform consistently without fatigue or boredom, making them dependable for repetitive tasks.

Communication

• The combination of efficiency, accuracy, and reliability allows computers to:

  • Eliminate time and distance as constraints in business and communication.

  • Enable global sharing of information in diverse manners.

  • Reduce costs associated with communication.

  • Facilitate social interactions on a global scale.

Types of Computer Systems

Key Features

• Factors to consider when comparing computer systems:

  • Power: Measured by CPU speed and RAM capacity.

  • Purpose: Different systems serve different functions, such as servers or basic office applications.

  • Size and Mobility: Ranges from enormous mainframes to portable devices.

  • Software: Refers to the operating systems or 'platforms' (e.g., Linux, Windows).

Nonportable Computers

• Characteristics:

  • Large size, designed for stationary use.

  • Typically more powerful than portable devices.

  • Include standard components such as a system unit, monitor, mouse, and keyboard.

  • All-in-one Units: More portable but harder to repair or upgrade.

Types of Nonportable Computers

• Desktop Computers: General-use systems requiring stationary setups.

• Servers: Designed to manage network resources and services.

• Entry-Level Computers: Affordable and suited for basic tasks, equipped with 'Home editions' of software.

Portable Computers

• Types and Features:

  • Laptop/Notebook: Compact design for convenience and mobility.

  • Tablet: Touchscreen devices with varying functionality.

  • Hybrid Computers: Combine features of tablets and laptops.

  • Smartphone: Multi-functional mobile devices for communication and applications.

  • Phablet: Devices bridging smartphones and tablets, often larger than typical smartphones.

Categories of Users

Personal Users

• Tasks:

  • Limited office work, internet banking, email, browsing.

  • Engage in social networking, entertainment (gaming, music, movies, etc.), and sharing photos.

SOHO Users (Small Office Home Office)

• User Needs:

  • General-purpose computing for administrative tasks such as accounting, document archiving, and scheduling.

Power Users

• Characteristics:

  • Inhabitants of a high-performance computing realm (e.g., hardcore gamers, scientists, architects, video editing professionals, and engineers).

Mobile Users

• User Behavior:

  • Require technology access on the go, utilizing smartphones or tablets for browsing, gaming, reading, GPS navigation, notes, photos, and video recording.

Convergence

• Definition:

  • The trend of integrating multiple technologies into single devices, exemplified by smartphones and tablets.

Activities

Test and Improve

• Engage in activities designed to reinforce learning and understanding of the topics discussed.

Written Module Activity

• Tasks for students to demonstrate knowledge through practical assignments.