From 1198472dd8adec62b1291ddb96e928afa9b1070d Mon Sep 17 00:00:00 2001 From: tactonbishop Date: Fri, 2 Dec 2022 08:00:05 +0000 Subject: [PATCH] Last Sync: 2022-12-02 08:00:05 --- Electronics/Digital_Circuits/Four_bit_adder.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Electronics/Digital_Circuits/Four_bit_adder.md b/Electronics/Digital_Circuits/Four_bit_adder.md index e69de29..725a446 100644 --- a/Electronics/Digital_Circuits/Four_bit_adder.md +++ b/Electronics/Digital_Circuits/Four_bit_adder.md @@ -0,0 +1,12 @@ +--- +categories: + - Hardware + - Electronics +tags: [logic-gates, binary] +--- + +# Four-bit adder + +A single [half adder](/Electronics/Digital_Circuits/Half_adder_and_full_adder.md#half-adder) and [full adder](/Electronics/Digital_Circuits/Half_adder_and_full_adder.md#full-adder) allows us to calculate the sum of two 1-bit numbers, but this is not much use in practice. To approximate what is really happening at the circuit level in computers we need to be able to add bigger binary numbers. We will demonstrate how this can be achieved for a four-bit number (nibble) using repeated full adders and half adders. + +We want to be able to calculate the following sum: