Encoding is the process of representing the permissible values by a word (for example, 16 bits).

Encoding is the process of representing the permissible values by a word (for example, 16 bits).

• A. Converting an analog signal to digital
• B. Representing permissible values by a word
• C. Filtering the signal
• D. Modulating the signal

Answer: (B)

Encoding means mapping permissible values to a fixed-length representation, a word such as 16 bits, so each allowed value has a unique bit pattern. This fixed-length word lets the value be stored, compared, or transmitted consistently. The other processes serve different roles: converting an analog signal to digital involves sampling and quantization before any encoding; filtering changes which frequencies are present in a signal; modulation shifts the signal onto a carrier for transmission. So representing permissible values by a word is exactly what encoding does.

Encoding means mapping permissible values to a fixed-length representation, a word such as 16 bits, so each allowed value has a unique bit pattern. This fixed-length word lets the value be stored, compared, or transmitted consistently. The other processes serve different roles: converting an analog signal to digital involves sampling and quantization before any encoding; filtering changes which frequencies are present in a signal; modulation shifts the signal onto a carrier for transmission. So representing permissible values by a word is exactly what encoding does.