ICT- CT 1

Contents

  • Chapter 1: The Importance of Information & Communication Technology

  • Chapter 2: Computer Network

Chapter 1: The Importance of Information & Communication Technology

Objectives of the Chapter

At the end of this chapter, we will be able to:

  1. Describe the job opportunities in the field of information and communication technology.

  2. Explain the role of information and communication technology in communication.

  3. Explain the scope of information and communication technology in trade and business.

  4. Explain the importance of information and communication technology in government activities.

  5. Explain the contribution of information and communication technology in medical science.

  6. Explain the role of information and communication technology in the field of research.

Lesson 1: The Importance of Information and Communication Technology

  • Story Context: A personal story about Nilima and her family emphasizing the impact of ICT in daily life.

  • Mobile Banking:
      - Humayun's father sends money via mobile banking to facilitate shopping for his return.   - Highlights the convenience of mobile banking in rural areas of Bangladesh.

  • Job Applications:
      - Comparison of old job application processes with modern ICT processes.   - Humayun uses his laptop and modem to apply for a government job without needing to travel.

  • Group Activity: Create a poster on the importance of Information and Communication Technology (ICT) in Bangladesh.

Lesson 2: Information and Communication Technology in Creating and Getting Jobs

  • Job Market Changes:
      - Initial fears of job loss due to automation have shifted to new job creation because of ICT.

  • Dr. Iqbal Kadir's Perspective:
      - "Connectivity is Productivity" – highlights increased productivity through technology integration.

  • Employment Opportunities:   - Increased productivity with fewer workers due to technology.   - Examples include automated factory jobs, attendance machines, automated warehouses, and ATM services.

  • Mobile Phone Sector Growth:
      - Employment opportunities stemming from mobile companies, service providers, and new sectors like mobile banking.

  • Job Circulars Online:
      - Transition from traditional notice boards and newspapers to online job sites like Bdjobs.com, leading to instant notifications of opportunities.

  • Outsourcing:
      - Emerging trend allowing third-world countries to offer services like web development from home.   - Websites facilitating this process include Upwork, Freelancer, and Elance.

Lesson 3: Communication

  • Types of Communication:
      - One-Way Communication (Broadcast): Limited interaction; examples include radio and TV.   - Two-Way Communication: Enabling conversations, such as via telephones or emails.

  • Historical Example:
      - Use of radio broadcasts as signals for operations in the liberation war of Bangladesh.   - Impact of ICT on real-time information sharing and communication worldwide.

  • Email and Social Networking:
      - The importance of email addresses in modern identification and communication.   - The rise of social networking platforms enabling broad outreach and organizing capabilities.

  • Web Conferencing:
      - Various aspects and features of web conferencing software (like Zoom, Skype, etc.).   - Uses include meetings, seminars, virtual classrooms, etc.

Lesson 4: Importance of Information and Communication Technology in Business

  • Business Objectives:
      - ICT streamlining production, communication, management, and marketing processes.

  • Cost Reduction:
      - Methods to reduce costs, such as controlling stock, improved production management, and faster communication through various ICT tools.

  • Benefits of ICT Tools:
      - Employment of devices such as fax machines, emails, and the Internet to enhance business operations.

  • Marketing and Payment Collection:
      - Impact of ICT on market analysis, advertising, sales management, and efficient payment systems.

Lesson 5: The Application of Communication Technology in Government Activities

  • Government Efficiency:
      - ICT's role in improving public service delivery, access to information, law enactment, and public information dissemination.

  • Service Accessibility:
      - Services like e-settlement records and telemedicine are highlighted.

  • Online Payments and Registrations:
      - How citizens benefit from online services for tax submission, utility payments, and transport bookings.

Lesson 6: Healthcare

  • Advancements in Healthcare:
      - Superiority of informed treatment over mere symptom observation.   - Introduction of telemedicine, benefits in patient access to care, and disease prevention through immunization programs.

  • Research and Treatment:
      - Importance of information technology for diagnosing and monitoring patient health effectively, leading to personalized treatments and advanced healthcare methods.

Lesson 7: Research

  • Significance of ICT in Research:
      - Transformation of research methodologies; reliance on computers for data processing and management.   - The role of networked and automated machines in practical research and data collection.

Chapter 2: Computer Network

Objectives of the Chapter

  1. Explain the idea of computer network.

  2. Explain different network related devices.

Lesson 8: The Idea of Network

  • Definition of Computer Network:
      - A computer network allows computers to exchange data when connected through mediums like cables or Wi-Fi.

  • Types of Servers and Clients:
      - Server: Provides services to other computers (clients).   - Client: Receives services from servers, e.g., an email server providing email functionality.

Lesson 9: Topology

  • Types of Network Topologies:   - PAN: Personal Area Network (Bluetooth).   - LAN: Local Area Network (in schools).   - MAN: Metropolitan Area Network (city-wide).   - WAN: Wide Area Network (country or globe).

  • Common Topologies:
      - Bus, Ring, Star, Tree, Mesh, and Hybrid: Characteristics, advantages, and possible issues of each topology explained.

Lesson 10: Use of Network

  • Significance of Information Sharing:
      - Transformation of information dissemination; efficiency and accessibility of information compared to traditional means.

  • The Role of Networks in Software Sharing:
      - Use of centralized software instead of individual installations, facilitating ease of access and updates.

  • Enhancements in Communication and Entertainment:
      - Shift from physical media to online streaming, downloading, and file sharing.

Lesson 11: Use of Network (Continued)

  • Cloud Computing:
      - An emerging concept allowing users to access services without constructing extensive infrastructure.

  • Social Networks:
      - Impact of social media platforms on communication, file sharing, and networking.

Lesson 12: Network Related Devices

  • Devices and Their Functions:
      - Hub: Connects multiple devices but lacks address recognition.   - Switch: Similar to hub but identifies nodes and accelerates data transmission.   - Router: Directs data packets between networks and manages routing paths.

Lesson 13: Some More Network Related Devices

  • Modems:
      - Convert digital signals to analog and vice versa, critical for Internet connectivity.

  • LAN Cards:
      - Necessary for data exchange among networked devices.

Lesson 14: Satellite and Optical Fibre

  • Satellite Communication:
      - Functionality and importance of satellites in global communications, including Bangladesh’s involvement in space technology.

  • Optical Fibre Technology:
      - Efficient means of communication, allowing high-speed data transmission, especially over long distances.