As you can see, most sockets are connected in columns. If one socket
of a column is connected to a power supply, then automatically all the
other sockets in this column are powered, too. On the bigger board
in the photo, you can also see four rows of connected sockets. This
is convenient for bigger circuits. Usually, you connect one row to your
power supply and one to the ground. This way, you can distribute power
and ground to any point on the board. Now let’s see how to put parts
on a breadboard.