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What is Modem

Modem is another way to say “Modulator-Demodulator.” It is an equipment part that permits a PC or another gadget, like a switch or switch, to interface with the Internet. It changes over or “tweaks” a simple sign from a phone or link wire to advanced information (1s and 0s) that a PC can perceive. Additionally, it changes over advanced information from a PC or other gadget into a simple sign that can be sent over standard phone lines.

The primary modems were “dial-up,” which means they needed to dial a telephone number to interface with an ISP. These modems worked over standard simple telephone lines and utilized similar frequencies as calls, which restricted their most extreme information move rate to 56 Kbps. Dial-up modems additionally required full utilization of the neighborhood phone line, which means voice calls would interfere with the Internet association.

Present day modems are regularly DSL or link modems, which are considered “broadband” gadgets. DSL modems work over standard phone lines, however utilize a more extensive recurrence range. This takes into consideration higher information move rates than dial-up modems and empowers them to not meddle with calls. Link modems send and get information over standard satellite TV lines, which are commonly coaxial links. Most present day link modems support DOCSIS (Data Over Cable Service Interface Specification), which gives a proficient method of sending TV, satellite Internet, and advanced telephone signals over a similar link line.

NOTE: Since a modem changes simple signals over to advanced and the other way around, it very well might be viewed as an ADC or DAC. Modems are not required for fiber optic associations on the grounds that the signs are sent carefully from start to finish.

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