It's call a NIC (Network Interface Card)
Yes.
If you are referring to a modem, the it is a device that allows your computer to connect to the internet.
A wireless USB adapter allows a computer or wireless device to connect to a wireless router. It is needed for any device which is not wired to an internet connection, to connect.
A device used to connect a computer to the internet is a modem.
Network Interface Card used for connection with computer. Wireless router to connect internet with mobile. Wifi adapter also used to connect internet with your computer.
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The primary example of a hardware component that allows user data input is a keyboard.
Your Network card, or "Network Interface Device" is used to connect to the Internet. This will generally be either integrated in the Motherboard, or inserted as a PCI card (or PCMCI for a laptop).
Hardware is the physical parts that are connect inside your computer. Hardware Devices are the hardware drivers installed on your hard drive.
A modem allows your computer to connect to a phone line.
Often referred to as a "wi-fi" card, a NIC or "network interface card" is used to intercept signal output from another device such as a router. Most modern laptops carry an 802.11 card.
A wireless NIC (Network Interface Card) is a hardware component that allows a device to connect to a wireless network. It enables the device to send and receive data wirelessly using Wi-Fi technology. Wireless NICs are commonly found in laptops, smartphones, tablets, and other devices that require wireless internet connectivity.