4) What is the use of
modem.Explain various types of modem
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Answer:
Modem stands for Modulator Demodulator. It converts digital data into analog form and vice versa at source computer in a format that can be carried by telephone lines.
Example ISDN modem.
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Modem is a hardware device that enable a computer to communicate(send and receive signals) via telephone lines.
- The term 'Modem' is the short form for 'Modulator-Demodulator'. The modem converts Digital data to Analog audio signals and vice-versa, over a telephone line. This kind of a modem is also called as a dial-up modem.
- Nowadays, a modem connects a Computer or Router to a broadband connection. Such a modem is called as a broadband modem. Following are some types of computer modems:
- Onboard Modem: These type of modems are built onto the Motherboard. These cannot be removed but can be disabled.
- Internal Modem: This modem connects to a PCI slot inside a latest desktop computer.
- External Modem: Such modems are connected to a computer externally via a USB or serial port.
- Removable Modem: These are not much in use nowadays. Removable modems, as the name suggests can be added when needed and removed otherwise.
To know more about Modems, visit:
https://brainly.in/question/4354445
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