Week 5: Encoders, Decoders Multiplexers and Number Representation

Question 1

What do binary signals along a wire represent?

Answer 1

A single state or part of a binary code

Question 2

What are encoders and decoders used for?

Answer 2

They offer a way to convert between single state and part of binary code

Question 3

What is the function of decoders?

Answer 3

They map multi-bit binary codes to a single output line

One-Many

Question 4

What is the function of a multiplexer?

Answer 4

They select a single line from several possible lines and sends data to the output line

(many to one relationship)

Question 5

What is the function of a de-multiplexer

Answer 5

To select an output line from several possible lines and send the input data to that line

Question 6

What do number representations define?

Answer 6

Different ways to represent numerical values

Question 7

What happens when handling real numbers with finite memory?

Answer 7

We can create space-efficient ways to store non-integer values