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Design a logic circuit that controls an elevator door in a three-story building. The circuit has four inputs. M is a logic signal that indicates when the elevator is moving (M=1) or stopped (M=0). F1, F2 and F3 are floor indicator signals. They go HIGH or 1 only when the elevator is positioned at the level of that particular floor. For an example, OPEN is HIGH when the elevator is not moving (M=0) and lined up with the second floor, F2=1, while not lined up with others (F1=F3=0). Also remember that the elevator cannot be lined up with more than one floor at a time, as only one of the floor inputs can be HIGH at any given time.

Design a logic circuit that controls an elevator door in a three-story building. The circuit has four inputs. M is a logic signal that indicates when the elevator is moving (M=1) or stopped (M=0). F1, F2 and F3 are floor indicator signals. They go HIGH or 1 only when the elevator is positioned at the level of that particular floor. For an example, OPEN is HIGH when the elevator is not moving (M=0) and lined up with the second floor, F2=1, while not lined up with others (F1=F3=0). Also remember that the elevator cannot be lined up with more than one floor at a time, as only one of the floor inputs can be HIGH at any given time.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Design a logic circuit that controls an elevator door in a three-story building.
The circuit has four inputs. M is a logic signal that indicates when the elevator is moving (M=1) or stopped (M=0). F1, F2 and F3 are floor indicator signals. They go HIGH or 1 only when the elevator is positioned at the level of that particular floor. For an example, OPEN is HIGH when the elevator

is not moving (M=0) and lined up with the second floor, F2=1, while not lined up with others (F1=F3=0). Also remember that the elevator cannot be lined up with more than one floor at a time, as only one of the floor inputs can be HIGH at any given time.

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