Self-study
Theoretically, analog systems are superior to digital systems. █ ██████ ██ █ ████ ██████ ██████ ███ ██ ██████████ █████████ █████ ███████ ███████ ██████ ███████ ███████ ████ ███ ████ ███████ ████ █████ ███████ ██████ ████ ████ ███████████ █████████ █████ ██ █ █████████ █████████████ ████████ █████ █████ ██ ██ █████ ██ ███ █████████ ██████ ██ ███ ███████ ███ ███████████ ██ ██ ██████ ██████████████ ██████ ████ ██████████ ████ ███ █████████ █████ ███ ███████ █████ ██████ ████ ██ ██████████ ██ ███████ ███ ███████████ █████ ████ ███████ ███████████ ███ ███████████ ████████ ██ ███ ████████ ███████
Summary
In theory, analog systems are better than digital systems. This is because analog signals can be infinitely detailed, whereas digital signals cannot, since they can’t be more precise than their digital units. But there’s an associated disadvantage of analog systems. Since there’s no limit to the level of detail in analog signals, duplication of analog signals allows room for variations from the original (called errors), which tend to build up as the analog signal is further duplicated. At some point, the number of errors in an analog signal makes it impossible to understand the information contained in the original signal.
Strongly Supported Conclusions
When duplicated, digital signals allow for less variation than analog signals allow.
Digital systems may be better for signals that must be duplicated many times.
14.
The statements above, if true, ████ ████████ ███████ █████ ███ ██ ███ ██████████
a
Many ideas that ████ ████ ██ ██████ ██ ███ ████ ████ ██ █████████
Unsupported. Analog systems are at a disadvantage when signals have to be copied many times. That doesn’t imply that analog systems don’t work well in practice.
b
Analog representation of ███████████ ██ ███████████ ███████ ██ ██ ███ ████ ██████████ ████████ ████████████
Unsupported. The stimulus doesn’t suggest that we don’t need infinitely detailed information. Maybe we do, and it would be better for us if there were a way to achieve such infinite detail.
c
Digital systems are ███ ████ ███████████ ███████ ███████ █████ ██████ █████ ██ ███ ████████ ██ ███████ ████████
Unsupported. Although digital systems are not as prone to error in duplication as are analog systems, that doesn’t imply that there are never any errors associated with emission of digital signals.
d
Analog systems are ████████ ██ ███████ ███████ ███ ████ █████████ █████████
Unsupported. Although analog systems are worse for purposes that involve duplicating a signal many times, that doesn’t imply they’re worse for “most” practical purposes. Maybe most practical purposes don’t involve numerous copies.
e
Digital systems are ██████████ ██ ██████ ███████ ████ ███ ██████ ████ ██ ██████████ ████ ██████
Strongly supported. We’re told that analog systems lead to a build-up of errors in the signal when the signal is copied many times. Digital system don’t have this problem to the same extent. So, digital systems are preferable when we need the signal to be copied many times.