On the back of the Alesis TapeLink you'll find RCA connections for stereo input and output, along with an attached power cable, USB output, and a small gain control knob for boosting the audio signal to your computer.
The most basic piece of included software is a PC-only program called EZ Tape Converter (a more limited, Mac-only version of the software is also included). The program includes an easy to follow step-by-step process for recording, labeling, and exporting your songs. It also includes a feature that detects the silences between songs and automatically splits the incoming audio into separate tracks.
The BIAS SoundSoap software (Mac/PC) included with the Alesis TapeLink USB does an outstanding job removing hiss from recordings, but it adds an extra step to the already tedious process of archiving your old cassettes.