12 IT In Society

12 IT In Society

12.1 Digital Currencies

  • Electronic Currency: Payment in digital form, eliminates physical currency exchange.

    • Types include:

      • Digital currency

      • Virtual currency

      • Cryptocurrency

      • Central bank digital base money

      • Stored value cards

Digital Currency

  • Definition: Money available in digital form, transferred electronically instead of cash.

  • Popular payment methods: credit cards, mobile phones, smartwatches.

  • Characteristics: Centralized vs. decentralized.

  • Centralized Systems:

    • Credit/Debit Card: Used with card readers; payment process involves data transfer from user to business bank account.

    • Electronic Point of Sale (EPOS): System for managing sales, customer loyalty, stock inventory, etc.

Decentralized Systems

  • Bitcoin: Cryptocurrency eliminating central authority, supporting P2P transactions via blockchain.

  • Litecoin: Bitcoin fork for faster and cheaper transactions.

  • Peer-to-Peer Monetary Systems: Enable direct electronic payment between users without intermediate financial entities.

  • Mobile Electronic Wallet:

    • Contactless payment method through mobile devices.

    • Users download an app to store payment information.

    • Data transferred to the bank for payment processing.

Process for Mobile Electronic Wallet (4 Marks)

  1. User downloads app and registers.

  2. Receives verification SMS.

  3. Authenticates number using code.

  4. Inputs credit card or bank account details.

  5. Payment details authenticated for transactions.

Advantages of Digital Currency

  • Eliminates need for physical money.

  • Provides transaction records.

  • Facilitates blocking transactions in case of card theft.

  • Speedy contactless payments; no need for PIN.

  • Enables international transfers in one currency.

Disadvantages of Digital Currency

  • Contactless payment limits.

  • Potential for data hacks.

  • Risk of accidental charges via machines.

  • Proximity theft in contactless payments.

Virtual Currency

  • Definition: Exists only in a virtual environment, no physical counterpart.

    • Example: Game tokens or in-app currencies.

  • Advantages:

    • Personalized user experiences in games.

    • No significant manufacturing cost.

    • Programmable for automated transactions.

  • Disadvantages:

    • Lack of regulation; subject to scams.

    • Specific to apps and games, non-transferable.

Cryptocurrency

  • Definition: Digital currency secured by cryptography, often decentralized and uses blockchain technology.

    • Examples: Bitcoin, Litecoin.

  • Advantages:

    • Low fund transfer fees.

    • Difficulty in counterfeiting.

    • Investment potential for high returns.

  • Disadvantages:

    • Can facilitate untraceable criminal activities.

    • Highly volatile market.

    • Susceptibility to cyber hacking.

Central Bank Digital Base Money (CBDC)

  • Definition: Digital form of fiat money, akin to physical currency with serial numbers to prevent counterfeiting.

  • Advantages:

    • Reduces money laundering and tax evasion.

    • Lowers production costs of physical money.

    • Enhances money exchange speed.

    • Simplifies monetary policy implementation.

  • Disadvantages:

    • Possible reduction in user privacy.

    • Vulnerability to cyberattacks.

Stored Value Cards

  • Definition: Cards holding a set monetary value, used until depleted.

    • Types: Closed-loop (non-reloadable) and open-loop (reloadable).

  • Advantages:

    • Controls overspending; no credit history impact.

    • Access without credit checks.

  • Disadvantages:

    • Inactivity fees may apply.

    • Limited purchasing power (closed-loop cards).

Impacts and Risks of Digital Currencies

  • Disadvantages primarily affect banks due to fees lost from business transactions, potential for facilitating tax evasion and money laundering.


12.2 Data Mining

  • Definition: Data analysis to identify patterns across large data sets, useful for businesses.

  • Data Warehouses: Extensive storage of data for mining activities.

Steps in Data Mining Process

  1. Business Understanding: Define business objectives with data analysis.

  2. Data Understanding: Explore available data and assess its quality and relevance.

  3. Data Preparation: Cleanse and organize data for analysis.

  4. Data Modeling: Select techniques to find patterns or make predictions.

  5. Evaluation: Measure model performance against objectives.

  6. Deployment: Implement findings in real-world applications.


12.3 Social Networking Services/Platforms

  • Definition: Websites/apps enabling user interaction.

Types of Social Networking Services

  1. Chat Rooms: Online spaces for real-time text-based communication.

    • Features: Public & private access; support for text and multimedia.

  2. Instant Messaging: Real-time text messaging; includes multimedia sharing.

    • Features: Read receipts, online status indications.

  3. Forums: Structured discussion boards on various subjects.

    • Utilization: Knowledge sharing and collaboration.

  4. Emails: Asynchronous communication enabling documentation and file sharing.

    • Importance: Both personal and professional communication.

  5. Blogs: Online journals sharing information and experiences.

    • Interactivity through comments.

  6. Microblogs: Concise updates and information sharing in real-time.

    • Example: Twitter.

  7. Social Media: Platforms supporting content creation, sharing, and user engagement.

    • Role in community building and discourse shaping.

Uses of Social Networking in Various Fields

  • Education: Facilitates learning through collaboration and information sharing; includes various services for student-faculty interactions.

  • Finance: Market discussions and internal communications among financial institutions.

  • Health Care: Patient support networks and community engagement through platforms.

  • Information: Rapid news dissemination and involvement in current events.

  • Government: Public engagement and awareness-raising on political issues.

Impact on Individuals

  • Intellectual Isolation: Algorithms may restrict exposure to diverse ideas, fostering confirmation bias.

  • Health:

    • Physical: Sedentary lifestyle, sleep issues.

    • Mental: Cyberbullying, low self-esteem from social comparison.

  • Ideological Polarization: Greater division due to echo chambers and selective information exposure.

  • Stereotyping and Cognitive Issues: Online scrutiny might exacerbate cognitive processes leading to stress and anxiety.

Advantages of Social Networking

  • Global communication; real-time interaction; avenues for support and advice; entertainment.

Disadvantages of Social Networking

  • Information overload; exclusion feelings; potential misinformation; decreased attention span.


12.4 The Impact of IT

  • Various sectors such as sports, healthcare, education, e-commerce, and government leverage technology to improve services and efficiency.

  • Healthcare: Remote monitoring, AI support for patient care and management.

  • Education: Technology enhanced learning through CBT, online tutorials, and MOOC.


12.5 Technology Enhanced Learning

  • Computer-Based Training (CBT): Combines multimedia content for effective learning at the learner's pace.

  • Online Tutorials: Flexible access to learning resources, supporting diverse subject matter.

  • Networked Courses: Collaborative learning using real-time engagement between peers and tutors.

  • Massive Open Online Courses (MOOCs): Open access to diverse learning opportunities, enabling widespread education.

  • Video-Conferencing: Facilitates real-time discussions across distances, enhancing interactivity and engagement.

Teacher Motivation and Achievement Impact

  • Positive: Flexibility, creativity, access to global resources.

  • Negative: Technology challenges, lack of personal interaction impacting motivation.