RealTerm - RealTerm is a terminal program specially designed for capturing, controlling and debugging binary...
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Tera Term - Tera Term (Pro) is a free software terminal emulator (communication program) for MS-Windows.
GtkTerm - Gtkterm is a simple GTK+ terminal used to communicate with a serial port.
minicom - Minicom is a menu driven communications program. It emulates ANSI and VT102 terminals.
YAT - Yet Another Terminal - Engineering, testing and debugging of serial communication.