Final answer:
In the binary system, only one digit changes state (turns on or off) as a number increments or decrements.
Step-by-step explanation:
As a number increments or decrements, the binary code changes by flipping the state of a single bit — the bit that represents the lowest order of significant value that needs to change. For example, when counting in binary, incrementing by one would change the sequence 0010 to 0011.
Digital signals, as opposed to analog signals, switch between fixed voltage values and are interpreted as binary ones and zeroes. This binary data is used in many technologies, such as cell phones and computers, where data is processed, transmitted, and stored. These digital signals are the foundation of most modern electronic communication and computation.
Your question is incomplete, but most probably the full question was:
Fill in the blank:
In the ___________system, only one digit changes state (turns on or off) as a number increments or decrements.