The modem is short for modulator-demodulator, and this is the device that connects you to the Internet. There are many types of modems in the market: 1. Dial-up mo… See more

Please take note that a “pure modem” will only do the job of connecting to the Internet – How do we share the Internet connection then? This is where a router steps in to create you… See more

Network switches are “wired devices” that essentially serve the same function as a USB hub. You only have one port on your router but need more – This is where we use a netw… See more

The ancestor of network switches. We will not go into the details of how hubs and switches are different, as hubs are already extinct. Just know that hubs once exist, and if you searc… See more

You have probably heard of a “firewall” from somewhere already – Windows Firewall and MacOS Firewall ring a bell? But not to be confused with the software firewall, this is an actua… See more