Understanding Internet Connectivity and Devices

Common Misconceptions

Many people confuse being connected to Wi-Fi with having an internet connection.
Internet Service Providers (ISPs) are often mistakenly referred to as Wi-Fi providers.

ISP (Internet Service Provider): Provides internet service, not Wi-Fi. Examples include IndiHome, FirstMedia, BizNet, etc.
Modem: Connects to the internet and converts data for communication over various types of lines (e.g., fiber optic, coaxial, telephone, wireless).
Router: Manages network traffic, connects the modem to local devices, and acts as a gateway for internet connection.
Switch/Hub: Connects multiple devices within a local cable-based network. Switches are preferred over hubs for better traffic management.
Wi-Fi Access Point: Enables wireless connection within a local network. Acts as an alternative to cable connections.

Internet Source: Begins with the ISP providing the internet.
Modem: Internet enters the modem, converting signals for the line type.
Router: Establishes a local area network (LAN) and manages traffic between the internet and local devices.
Switch/Hub: Connects devices via cables to the local network.
Wi-Fi Access Point: Offers wireless connectivity to local devices.

Modem Types: Vary based on connection lines - fiber optic, coaxial, radio, etc.
Router Functions: Includes managing IP addresses and serving as a gateway within a network.
Switch and Hub: Used for cable connections; hubs are less efficient than switches.
Wi-Fi and Internet: Wi-Fi is a medium for connecting devices wirelessly to the network, not synonymous with internet.

ISPs often provide a single device that combines modem, router, switch, and Wi-Fi access point functionalities.
This allows for compact and effective management of internet services in homes or offices.

External routers may be used to enhance connectivity, especially if the ISP’s device only offers basic features (e.g., 2.4 GHz Wi-Fi).
Advanced routers can provide better performance and reliability.

Some routers can accept SIM cards for alternative internet sources (e.g., LTE, 4G).
Typically, these devices are rare and used for specific needs.

Differentiate between Wi-Fi and internet: Wi-Fi enables device connectivity; it is not the source of the internet.
Internet connectivity involves multiple devices working together: modem, router, switch, and Wi-Fi access point.

Presented by Dedy Irvan, Jagat Review TV.