Grade 11 students are introduced to networks and network technologies, covering cabled and wireless networks, LANs, intranets, and security measures. The purpose of a network is to share data and resources, provide a safe working environment, and facilitate communication.

A network facilitates data and resource sharing, connecting computing devices in a secure environment. Key components include workstations, communication medium, network interface cards, and network devices, with distinctions between LAN and wireless LAN in terms of installation ease, security, reliability, speed, and cost.

Corporate intranets are private networks within companies that facilitate communication and information sharing among employees. They provide a platform for discussions, internal emails, and collaboration on projects, accessible only to employees within the organization.

Exploring the importance of security in networks, focusing on access control measures like usernames, passwords, and firewalls to prevent unauthorized access and protect sensitive information.