parallel port

COM Port Redirector enables data redirection from one rs232 port to another

An affordable, flexible and highly functional emulator of COM port device data!

Monitor data received from and sent to a COM port in manual, auto or spy modes!

Communicate with RS232 serial port and generate complex structure data.

Check whether or not one unit can access a specific port on another unit in your network.

Perform port forwarding, packet routing, cloning, and many other networking functions.

Debug COM Port communication.

Perform scans on predefined port ranges.

Locked USB port is a lightweight application that serves to lock on computer.

A port from C to Ruby of the examples in M.