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Team Week 2

In: Computers and Technology

Submitted By ac0102dad
Words 2307
Pages 10
Analog and Digital Comparison Paper
Current technology utilizes many different types of transmission cable such as fiber optics, coaxial cable, and twisted pair copper wire. These different types of cables use different communications techniques that maximize their efficiency. For instance, fiber optics can carry digital signals over long distances without amplification or repeaters required. Copper wire, on the other hand, carrying analog signals requiring amplification and noise corrections along the way in much shorter intervals. The result is there is a mix of transmission lines that require special software and equipment such as codecs and modems to convert and move data from one point to another.
Codecs and Modems
The most common form of analog to digital conversions uses multiplex devices and coder-decoder devices otherwise known as codecs. These programs receive analog signals from sine waves such as audio communications and code them as digital signals. These signals then travel to other locations with codec or modem devices that decode or decompress the data back to analog signals. Digital devices use modems or combinations of codecs and modems to modulate the data signals to analog signals to travel to other modems for demodulation back to digital data.
The codec is “software that is used to compress or decompress a digital media file, such as a song or video” (Microsoft, 2014). This process is the same in telecommunications systems, which consist of the encoder performing the data compression and the decoder performing the data decompression. This converts the analog signal to digital or binary signals for transmitting over long distances effectively reducing the data to smaller chunks. The receiving device then decompresses or expands the signal back into analog form to either play on the speaker, phone handset or other analog devices. The...

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