The chapter “Tools of Communication” in Class 9 Commercial Application focuses on the various tools and technologies used for communication in commercial organizations. Here’s a summary of the key points covered in this chapter:

1. **Types of Communication Tools**: The chapter begins by discussing the different types of communication tools used in organizations, such as:
– Verbal tools: These include face-to-face conversations, telephone calls, and voice messages.
– Non-verbal tools: These include body language, gestures, facial expressions, and visual cues.
– Written tools: These include emails, letters, reports, memos, notices, and circulars.
– Visual tools: These include charts, graphs, diagrams, presentations, and videos.

2. **Technological Tools**: The chapter also explores technological tools used for communication, such as:
– Telecommunication devices: These include telephones, mobile phones, and video conferencing systems.
– Computer-based tools: These include emails, instant messaging, social media, and collaborative software.
– Internet-based tools: These include websites, blogs, online forums, and webinars.
– Audiovisual tools: These include presentations, webcasts, and video conferences.

3. **Advantages of Communication Tools**: The chapter highlights the advantages of using communication tools in organizations, such as:
– Speed and efficiency: Communication tools allow for quick and efficient exchange of information.
– Accessibility: Communication tools enable communication across geographical boundaries and time zones.
– Cost-effectiveness: Communication tools can be cost-effective compared to traditional communication methods.
– Enhanced collaboration: Communication tools facilitate collaboration among team members and departments.

4. **Challenges of Communication Tools**: The chapter also discusses some challenges associated with communication tools, such as:
– Misinterpretation: Written communication can be misinterpreted without the context of verbal cues.
– Over-reliance: Over-reliance on communication tools can lead to a lack of face-to-face interaction.
– Security risks: Communication tools can pose security risks, such as data breaches and hacking.

Overall, the chapter emphasizes the importance of selecting the right communication tools based on the nature of the message, the audience, and the desired outcome. It also highlights the need for effective communication skills to complement the use of communication tools in commercial organizations.