Which type of device is old?
The device is a computer.
    src        edge_attr  dst
0     0   to the left of    8
1     1   to the left of    9
2     1   to the left of    5
3     1   to the left of   11
4     2   to the left of    9
5     5  to the right of    1
6     5   to the left of   11
7     8  to the right of    0
8     8  to the right of   11
9     9  to the right of    1
10    9  to the right of    2
11   11  to the right of    1
12   11   to the left of    8
13   11  to the right of    5