MoSys, Inc. Appoints Dave DeMaria Vice President of Business Operations

SUNNYVALE, Calif. -- Aug. 25, 2008 -- MoSys, Inc., a leading provider of high-density system-on-ship (SoC) memory and analog/mixed-signal intellectual property (IP), today announced the appointment of Dave DeMaria as its Vice President of Business Operations. Mr. DeMaria is a successful executive who brings over 25 years of experience in the electronics industry to MoSys.

Prior to MoSys, Mr. DeMaria was CEO of Optimal Coporation, and electronic design automation (EDA) company, which he helped grow and merge with Apache Design Solutions, where he served as a senior vice president. Previously, he held a number of executive positions in leading product lifecycle management (PLM) and EDA companies. He spent eight years at Cadence Design Systems, where he served as executive vice president of the Systems business unit and as senior vice president of worldwide marketing and strategy.

"I am pleased to welcome Dave to the MoSys executive team," stated Len Perham, President and CEO of MoSys. "Dave joins MoSys with extensive experience in the electronics industry and a very successful track record of helping to grow companies."

As an inducement material to Mr. DeMaria's employment, in accordance with NASDAQ Stock Market Marketplace Rule 4350(i)(l)(A)(iv), the Company has granted him a stock option to purchase 275,000 shares of common stock at an exercise price of $4.57 per share, which equals the closing price of a share of MoSys common stock on the NASDAQ Global Market on August 18, 2008.

About MoSys, Inc.

Founded in 1991, MoSys (Nasdaq: MOSY), develops, markets and licenses innovative embedded memory and analog/mixed-signal intellectual property (IP) technologies for advanced SoCs used in a variety of home entertainment, mobile consumer, networking and storage applications. MoSys' patented 1T-SRAM and 1T-FLASH technologies offer a combination of high density, low power consumption, high speed and low cost unmatched by other available memory technologies. MoSys' advanced analog/mixed-signal technologies include highly integrated Blu-ray DVD, Gibabit Ethernet, Serial ATA, and a range of high speed phase lock loop and analog-to-digital converter IP. MoSys' embedded memory IP has been included in more than 160 million devices demonstrating silicon-proven manufacturability in a wide range of processes and applications. MoSys is headquartered at 755 N. Mathilda Avenue, Sunnyvale, California 94085. More information is available on MoSys' website at http://www.mosys.com.