Fundamentals of Information Technology: Introduction to Computing and Digital Citizenship

Module Objectives

  • Understanding Technology Reliance: Explain why and how modern society relies heavily on technology.

  • Component Identification: Describe the basic components that make up a computer system.

  • Connectivity Basics: Explain the functions and differences between the Web and the Internet.

  • Social Engagement: Identify various social media platforms and their roles.

  • Digital Ethics: Describe the legal and ethical responsibilities required of a digital citizen.

Overview of Information Technology (IT)

  • Definition: Information Technology (IT) refers to the use of computers, networks, and software to manage and process information.

  • Utility: IT powers essential sectors including communication, business operations, healthcare, education, entertainment, and government services.

  • Societal Impact: IT enables global connectivity, automation, and innovation, fundamentally shaping how societies function and interact.

Key Computer and Network Terminology

  • Computer: An electronic device that operates under the control of instructions stored in its memory; it can accept and process data to produce information for future use.

  • Memory: Consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data into information.

  • The Internet: A global collection of millions of computers linked together to share information.

  • Network: A collection of 22 or more computers connected to share resources.

  • Wi-Fi (Wireless Fidelity): A wireless data network technology that provides high-speed data connections without being attached to a physical device; it is primarily used for mobile devices.

  • Server: A powerful, high-capacity computer accessed via the Internet or other networks; it stores files and "serves" them (makes them available to users), usually grouped in locations called data centers.

  • Big Data: Large and complex data sources that defy easy management with traditional data processing methods.

  • Online Social Network: An online community where users share interests, ideas, stories, photos, music, and videos with other registered users via websites like Facebook, Google Plus, Twitter, Instagram, or Snapchat.

Historical Context of Computing

  • First Generation Computers: Utilized vacuum tubes (cylindrical glass tubes that control electron flow).

    • Examples: ENIAC (Electronic Numerical Integrator and Computer) and UNIVAC (Universal Automatic Computer).

    • Constraints: Their use was limited by large size, high power consumption, intense heat generation, and frequent hardware failure.

  • The Personal Computer Revolution:

    • In 19781978, Steve Jobs and Steve Wozniak of Apple Computer Corporation introduced the Apple II.

    • Apple II: A preassembled computer featuring color graphics and the popular spreadsheet software known as VisiCalc.

The Internet of Things (IoT) and Embedded Systems

  • Internet of Things (IoT): An environment where processors are embedded in various products ("things"), allowing them to communicate with each other via the Internet or wireless networks.

  • Smart Devices: IoT-enabled devices capable of communicating, locating, and predicting; they are often controlled via associated mobile apps.

  • Embedded Computers: Items that are part of the IoT; these are computers functioning as one component in a larger product with a specific purpose. They are typically small with limited hardware but enhance the capabilities of everyday devices based on product requirements.

    • Example (Automotive): Embedded computers in vehicles improve safety, security, and performance.

    • Example (Banking): Automated Teller Machines (ATMs) are a type of kiosk/freestanding booth and a common example of IoT.

Societal Applications of IoT and Technology

  • Public Transportation: Users can use phone apps for directions to subway stations, scan phones to pay fares, and view station screens for incoming train alerts.

  • Home Management: IoT allows for remote management, such as starting washing machines, preparing grocery lists, viewing intruders via webcams, or adjusting room temperature.

  • Manufacturing: Uses sensors to monitor processes, increase product quality, and employ robotic arms for precision.

  • Retail: Uses sensors to track inventory or transmit digital coupons to customers' phones.

  • Shipping: Companies track truck mileage, location, and monitor driving times for efficiency.

  • Healthcare:

    • Connects to wearable blood pressure or glucose monitors.

    • Sends prescription updates directly to pharmacies and alerts patients.

    • Stores and tracks data from wearable monitors for follow-up care.

    • Sends automated appointment or test reminders to patients.

The Digital Divide

  • Definition: The gap between those who have access to technology (and its resources/information) and those who do not.

  • Contributing Factors: Socioeconomic and demographic factors such as age, income, location, and education levels.

  • Impact: Can affect individuals, households, businesses, or entire geographic regions.

Basic Components of a Computer System

  • Hardware: Physical parts including the Central Processing Unit (CPU), memory (RAM), storage devices (HDD/SSD), input devices (keyboard, mouse), output devices (monitor, printer), and communication devices (modem).

  • Software: Programs and operating systems that provide instructions to hardware to perform specific tasks.

  • Data: Raw facts and figures processed by the computer.

  • Users: People who interact with the system to perform tasks.

The Web vs. The Internet

  • The Internet: The physical and technical infrastructure (cables, routers, satellites, servers) allowing global communication.

    • Protocols: Primarily uses TCP/IP.

    • Services Supported: Email (Gmail, Outlook), File Transfer (FTP), Instant Messaging (WhatsApp, Signal, Telegram), Voice over IP (VoIP like Skype), and the World Wide Web.

  • The World Wide Web (WWW): An information-sharing model built on top of the Internet.

    • Access: Uses browsers (Chrome, Firefox, Safari) and hyperlinks.

    • Protocols: Uses HTTP/HTTPS to transfer content.

    • Origin: Invented by Tim Berners-Lee in 19891989.

  • Analogy: The Internet is a road system (highways, streets); the Web represents the restaurants, shops, and attractions visited using those roads.

Social Media Platforms and Importance

  • Purpose: Allows users to create/share content, communicate instantly, and build communities.

  • Key Platforms:

    • Facebook: Friends, family, sharing posts.

    • Instagram: Photo/video sharing, stories, reels.

    • Twitter/X: Short text updates (tweets), trending topics.

    • TikTok: Short-form viral videos.

    • LinkedIn: Professional networking and career development.

    • Messaging: WhatsApp, Messenger, Telegram for group chats.

  • Significance: Transformed global communication, information sharing (including risks of misinformation), business marketing, social movements/activism, and entertainment.

Digital Citizenship and Literacy

  • Digital Literacy: Acquiring current knowledge and understanding of computers, mobile devices, the web, and related technologies.

  • Digital Citizen: A person familiar with using technology to be an educated and productive member of the digital world.

  • Literacy vs. Citizenship: While digitally literate people might just copy and paste information, digital citizens understand when it is appropriate to do so, how to credit sources, and the legal ramifications/results of violating copyright.

  • Netiquette: The code of acceptable behaviors and conduct expected of individuals while online, covering web use, social media, messaging, and file transfers.

Legal and Ethical Responsibilities

  • Digital Ethics: Legal and moral guidelines governing technology use.

  • Cyberbullying: Bullying involving digital platforms (social media, messaging, email).

    • Missouri Statute Definition: Bullying "through the transmission of a communication, including but not limited to, a message, text, sound, or image by means of an electronic device."

  • Distracted Driving: Operating a vehicle while focusing on electronic devices.

    • Prevention Tips: Turn off/silence devices; use automated responses; set GPS before starting; pull over to a safe location to text/call; ask passengers to handle devices.

    • Other Safety Tips: Ensure use of car seats/seatbelts; secure pets; do not eat/drink; do not read emails/texts while driving.

Organizational Protection and AUPs

  • Acceptable Use Policies (AUP): A document listing guidelines and repercussions for using the Internet and digital resources (network storage, email).

    • Purpose: To reduce organizational liability and clarify fireable offenses.

    • Malaysian Examples:

      • University AUPs: For students and staff regarding IT resources and email.

      • Corporate AUPs: For employees regarding company-owned devices.

      • Government AUPs: Ensuring responsible use of public resources.

  • Academic Integrity: Tools like Turnitin are used to check for plagiarism and uncited passages in student work.

Green Computing

  • Definition: Reducing electricity consumption and environmental waste generated by technology.

  • ENERGY STAR: A program developed by the U.S. Department of Energy and the U.S. Environmental Protection Agency to reduce electricity usage in devices.

  • Individual Actions:

    • Buy ENERGY STAR labeled products.

    • Shut down devices overnight.

    • Donate old equipment.

    • Use paperless communication.

    • Recycle paper, toner, ink cartridges, and old devices.

    • Telecommute and use videoconferencing.

  • Organizational Actions:

    • Consolidate servers.

    • Use high-efficiency equipment and sleep modes.

    • Use low-power consumption processors.

    • Use outside air for data center cooling when possible.

Exercises

  • Briefly describe the following terms:

    • Digital citizen

    • Memory

    • Computer

    • Network

    • Server

  • Identify computer uses in the following sectors:

    • Education

    • Business

    • Health care

    • Manufacturing

  • List advantages of computers in these sectors:

    • Business

    • Education

    • Banking

  • Definitions and Examples:

    • What is the Internet of Things (IoT)?

    • Can you give two examples of IoT devices?

    • How does IoT benefit everyday life?