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# Boolean Algebra and Digital Logic Quiz

Created by
@CreativeCourage

George Boole

True and False

### Who were among the first to see the connection between computers and Boole’s Laws of Thought?

John Atanasoff and Claude Shannon

### What was the common perception of computers in the middle of the twentieth century?

<p>&quot;Thinking machines&quot; and &quot;electronic brains&quot;</p> Signup and view all the answers

### What is the essence of the machine as mentioned in the text?

<p>Simplicity</p> Signup and view all the answers

### How many memory locations can be selected by an address decoder with 4 inputs?

<p>16</p> Signup and view all the answers

### How many control lines are needed for a multiplexer to select among 8 inputs?

<p>$3$</p> Signup and view all the answers

### What does a multiplexer do in relation to its inputs?

<p>Selects a single output from several inputs</p> Signup and view all the answers

### What is the fundamental circuit of computer memory?

<p>D flip-flop</p> Signup and view all the answers

### When does the output of a D flip-flop change?

<p>When the value of D changes</p> Signup and view all the answers

### What happens to the low-order bit in a binary counter at each clock pulse?

<p>It is complemented</p> Signup and view all the answers

## Study Notes

### Boolean Algebra and Computers

• George Boole suggested that logical thought could be represented through mathematical equations.

### Boolean Algebra Values

• Boolean algebra deals with two values: 0 (false) and 1 (true).

### Computers and Boole's Laws of Thought

• Claude Shannon was among the first to see the connection between computers and Boole's Laws of Thought.

### Computers in the Mid-20th Century

• In the middle of the twentieth century, computers were perceived as giant calculators.

### The Essence of the Machine

• The essence of the machine is that it can process information, make decisions, and provide results.

• An address decoder with 4 inputs can select 2^4 = 16 memory locations.

### Multiplexer

• A multiplexer with 8 inputs needs 3 control lines to select among the inputs.
• A multiplexer is an electronic switch that selects one of several input signals and forwards it to a single output line.

### Computer Memory

• The flip-flop is the fundamental circuit of computer memory.

### D Flip-Flop

• The output of a D flip-flop changes on the clock edge (rising or falling).

### Binary Counter

• At each clock pulse, the low-order bit in a binary counter toggles (changes state).

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## Description

Test your knowledge about Boolean algebra and digital logic with this quiz. Learn about the relationship between Boolean logic and digital computer circuits, design simple logic circuits, and understand how digital circuits work together to form complex computer systems.

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