Digital Circuits Quiz

An adder in digital circuits performs addition of numbers, commonly used in arithmetic logic units (ALUs) and other parts of the processor for various operations.

The most common number representation used in adders is binary numbers.

Claude Shannon demonstrated binary addition in his graduate thesis at MIT in 1937.

<p>The outputs of a half adder are the sum ($S$) and the carry ($C$).</p> Signup and view all the answers

<p>An adder can be trivially modified into an adder–subtractor when using two's complement or ones' complement to represent negative numbers.</p> Signup and view all the answers

<p>A multiplexer is a device that selects between several input signals and forwards the selected input to a single output line. One practical application of a multiplexer is allowing several input signals to share one device or resource, such as one analog-to-digital converter or one communications transmission medium, instead of having one device per input signal.</p> Signup and view all the answers

<p>A multiplexer with 2^n inputs has n select lines, which are used to select which input line to send to the output.</p> Signup and view all the answers

<p>A demultiplexer is a device that takes a single input and selects signals of the output of the compatible mux, which is connected to the single input, and a shared selection line. It is related to a multiplexer as it performs the opposite function, selecting from one input to multiple outputs.</p> Signup and view all the answers

<p>Multiplexers can be used to implement Boolean functions of multiple variables by using the select lines to choose which input to send to the output, effectively allowing the implementation of complex logical functions.</p> Signup and view all the answers

<p>In the context of multiplexers, data selection refers to the process of selecting between several analog or digital input signals and forwarding the selected input to a single output line, with the selection directed by a separate set of digital inputs known as select lines.</p> Signup and view all the answers

<p>A multiplexer selects between several analog or digital input signals and forwards the selected input to a single output line.</p> Signup and view all the answers

<p>A multiplexer of 16 inputs has 4 select lines.</p> Signup and view all the answers

<p>A multiplexer makes it possible for several input signals to share one device or resource instead of having one device per input signal.</p> Signup and view all the answers

<p>A demultiplexer selects signals from the output of a compatible multiplexer and forwards them to a single output line.</p> Signup and view all the answers

<p>Multiplexers can be used to implement Boolean functions of multiple variables.</p> Signup and view all the answers