Keystroke authentication systems available in the market are mostly software-based. This is due to the ease of use as well as the low cost of the mechanism. Any new keystroke www.intechopen.com Design and Evaluation of a Pressure Based Typing Biometric Authentication System 237 authentication system has to consider these factors in the design. Likewise, the system designed for PBAS uses simplified hardware which minimizes the cost of production. The system is designed to be compatible with any type of PC. Moreover, it does not require any external power supply. In general, the system components are low cost and commonly available in the market.