Use the 25-hole parallel connector to attach a parallel device to the computer. The parallel connector is used primarily for printers. The parallel port sends and receives
data in parallel format, where eight data bits (one byte) are sent simultaneously over eight separate lines.
The parallel port can also be configured for compatibility with the PS/2 standard. Support for the EPP feature improves network adapter performance (adapters
connect to the computer's parallel port and require the appropriate software drivers from the adapter's manufacturer).
If you reconfigure your hardware, you may need pin number and signal information for the serial connector.
Pin Assignments for the Parallel Connector
Pin
Signal
1
STB#
2
PD0
3
PD1
4
PD2
5
PD3
6
PD4
7
PD5
8
PD6
9
PD7
10
ACK#
11
BUSY
12
PE
13
SLCT
14
AFD#
15
ERR#
16
INIT#
17
SLIN#
18–25
N/A
Shell
N/A
Monitor Connector
Use the 15-pin monitor connector to attach an external monitor to the computer.