computer is connected to internet by which device
Computer is connected to the internet by which device?
Answer: Computers connect to the internet through several types of devices. Here are the main ones:
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Modem:
- Function: A modem (short for modulator-demodulator) connects your computer to the internet by converting digital data from your computer into analog signals for transmission over phone lines, cable systems, or fiber optics and vice versa.
- Types: There are different types of modems, like DSL modems for phone lines, cable modems for cable networks, and fiber modems for fiber optic connections.
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Router:
- Function: A router routes data between your computer and the modem. It allows multiple devices to connect to the internet simultaneously and often provides Wi-Fi, creating a wireless network for devices to connect.
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Network Interface Card (NIC):
- Function: This is a hardware component inside a computer that provides connectivity to a wired network. It can be for Ethernet cables or encompass wireless cards for Wi-Fi connections.
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Access Points (for Wi-Fi):
- Function: These devices connect to a wired network and provide wireless access to the internet over Wi-Fi, extending the reach of your router’s signal.
How it Works:
- Connection Flow: Computer → NIC → Router → Modem → Internet Service Provider (ISP) → Internet.
- Wireless Setup: For Wi-Fi, your device connects wirelessly to a router or access point and then follows the same flow through the modem to the ISP.
Summary: Computers connect to the internet primarily through modems and routers, using various kinds of network interface cards for wired or wireless connectivity. Each device plays a specific role in translating, routing, and managing data to ensure seamless internet access.