Define an analog and a digital signal


Q1. Name and describe the principal technologies and trends that have shaped contemporary telecommunications systems.

Q2. Define an analog and a digital signal.

Q3. Distinguish between a LAN, MAN, and WAN.

Q4. List and describe the principal Internet services.

Q5. Define near field communication (NFC) and explain how it works.

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Basic Computer Science: Define an analog and a digital signal
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