PTSC Adds Linux for IGNITE

SAN DIEGO-- (BUSINESS WIRE)-July 19, 2002--PTSC (Patriot Scientific Corp.)(OTCBB: PTSC - news) announced that in response to developer's requests, the IGNITE™ microprocessor will be made available with a RTOS (Real Time Operating System) version of Linux®. The IGNITE processors and Intellectual Property (IP core) are presently, and will continue to be, available with VxWorks®. With the addition of Linux, product developers will have the option of selecting either Operating System with the IGNITE technology.

"The IGNITE, with its highly efficient architecture, is increasingly becoming the embedded processor being considered for applications that require the servicing and coordination of complex tasks between various functional entities comprised of hardware and software components," explained PTSC's V.P. of Engineering, Joey Maitra. "Many development engineers prefer Linux as it is royalty free and they have access to the source code. This allows them to tailor the Operating System to address their precise needs," Maitra continued.

Jeff Wallin, PTSC's CEO added, "The version of Linux to be available on the IGNITE is very compact, real time and ideal for those applications in the embedded community that need time critical responses. This move also broadens the market for the IGNITE to those developers who require a Linux Operating System for their applications."

ABOUT PTSC: Founded in 1987, PTSC is an Intellectual Property (IP); Integrated Circuit (IC) and systems level embedded engineering company. The Company develops, markets and enables innovative technologies to address demands in fast growing markets such as: wireless devices, home appliances and gateways, set top boxes, entertainment technology, automotive telematics, biomedical devices, as well as industrial controllers. Customers also come to PTSC for product integration and development using the IGNITE technology. More information is available at www.ptsc.com .

IGNITE is a trademark of Patriot Scientific Corp. Linux is a registered trademark of Linus Torvalds. VxWorks is a registered trademark of Wind River Systems, Inc. All other brands and product names used within this document are trademarks or registered trademarks of their respective owners.

Safe Harbor statement under the Private Securities Litigation Reform Act of 1995: Statements in this news release looking forward in time involve risks and uncertainties, including the risks associated with the effect of changing economic conditions, trends in the products markets, variations in the company's cash flow, market acceptance risks, technical development risks, seasonality and other risk factors detailed in the company's Securities and Exchange Commission filings.