| Decision Table for Common Computer Ports Expert System |
|---|
|
Mode of Connection |
number of pins |
number of rows |
circle shape |
number of sockets |
socket shape |
the port's width is |
plug fit |
| DB25 Male |
pins in rows |
25 |
na |
na |
na |
na |
na |
na |
| DB9 Male |
pins in rows |
9 |
na |
na |
na |
na |
na |
na |
| DB25 Female |
sockets in rows |
25 |
na |
na |
na |
na |
na |
na |
| Db15 Female |
sockets in rows |
15 |
2 |
na |
na |
na |
na |
na |
| Hd15 Female |
sockets in rows |
15 |
3 |
na |
na |
na |
na |
na |
| S-VHS |
sockets in a circular fashion |
na |
na |
a full circle |
4 |
na |
na |
na |
| PS/2 |
sockets in a circular fashion |
na |
na |
a full circle |
6 |
na |
na |
na |
| Din 5 Female |
sockets in a circular fashion |
na |
na |
a semi circle |
na |
na |
na |
na |
| USB A Port |
a single socket |
na |
na |
na |
na |
a flat rectangle |
na |
na |
| RJ11 |
a single socket |
na |
na |
na |
na |
a tall rectangle |
thin |
na |
| RJ45 |
a single socket |
na |
na |
na |
na |
a tall rectangle |
wide |
na |
| mini firewire |
a single socket |
na |
na |
na |
na |
a small square |
na |
na |
| Firewire |
a single socket |
na |
na |
na |
na |
an octagon |
na |
na |
| 3mm Stereo |
1 pin only |
na |
na |
na |
na |
na |
na |
internal |
| Composite Video |
1 pin only |
na |
na |
na |
na |
na |
na |
metal jacket |