Modulators and demodulators in hindi || Computer Network

Modulators and demodulators (modems) ko samjhaane ke liye, aap ek analog telephone line ka example le sakte hain.

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Modulators and demodulators in hindi

Modulator (परावर्तक): Modulator ek device ya circuit hota hai jo digital signals ko analog signals mein convert karta hai. Sochiye ki aap ek computer se ek email bhej rahe hain, jisme digital data hai. Jab aap ye email analog telephone line ke through transmit karna chahte hain, tab modulator digital data ko analog signals mein convert karta hai, jise telephone line samajh sake.

Modulator digital data ko analog signals mein convert karne ke liye ek modulation technique ka istemal karta hai. Common modulation techniques include amplitude modulation (AM), frequency modulation (FM), aur phase modulation (PM).

Demodulator (डी-मॉड्यूलेटर): Demodulator, jo ek modem ka hissa hota hai, analog signals ko wapas digital signals mein convert karta hai. Jab analog signals telephone line se receive hote hain, tab demodulator unhe analyze karta hai aur digital data ko extract karke original form mein restore karta hai. Is process ko demodulation kehte hain.

Demodulator bhi modulation technique ke anusaar design kiya jata hai, jisse woh analog signals ko sahi tarike se decode kar sake. For example, agar AM modulation istemal hua hai, toh demodulator AM modulation ko reverse karke original digital data ko nikalta hai.

Modem (मॉडेम): Modulator aur demodulator ko combine karke modem banta hai. Modem digital signals ko analog signals mein convert karta hai (modulation) aur analog signals ko wapas digital signals mein convert karta hai (demodulation). Modems communication systems mein use hote hain, jaise ki telephone lines, cable TV networks, DSL, aur satellite communication systems.

Is tarah se ye device, modulator digital signals ko analog signals mein convert karta hai, demodulator analog signals ko wapas digital signals mein convert karta hai, aur modem dono functions ko combine karke communication channels mein data transmission aur reception possible karta hai.

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