The numbers in the shapes are "columns" of the truth table below. Each circle and hexagon is a two-input NOR gate, whose output might be used by one or more other input gates.
Truth table
Bit
Inputs
Outputs
A
B
C
Carry
Sum
0
0
0
0
0
0
1
0
0
1
0
1
2
0
1
0
0
1
3
0
1
1
1
0
4
1
0
0
0
1
5
1
0
1
1
0
6
1
1
0
1
0
7
1
1
1
1
1
Licensing
Public domainPublic domainfalsefalse
This work has been released into the public domain by its author, Paul Murray at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Paul Murray grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2009-08-31 09:01 Paul Murray 448×610× (9191 bytes) Remove some text to make the image smaller
2009-08-31 08:58 Paul Murray 708×675× (9472 bytes) {{Information |Description = Network of NOR gates to perform a full binary addition |Source = I (~~~) created this work entirely by myself. |Date = ~~~~~ |Author = ~~~ |other_versions = }}
Captions
Add a one-line explanation of what this file represents