Presentation to be Webcast on September 19, 2007 at 2:45 p.m. EST

SUNNYVALE, Calif.–(BUSINESS WIRE)–Sept. 6, 2007–MoSys, Inc.
(NASDAQ: MOSY), the industry’s leading provider of high-density
system-on-chip (SoC) embedded memory intellectual property (IP), today
announced that Chet Silvestri, President and Chief Executive Officer,
and Jim Pekarsky, Chief Financial Officer, will be presenting at A.G.
Edwards’ 2nd Annual Emerging Growth Conference at the New York Palace
Hotel on Wednesday, September 19, 2007 at 2:45 p.m. EST.

A live audio Webcast of the presentation will be available on the
MoSys website at https://dev-mosys-web-04-19.pantheonsite.io. A replay will be available
shortly after the end of the presentation.

ABOUT MOSYS, INC.

Founded in 1991, MoSys (Nasdaq:MOSY), develops, licenses and
markets industry-leading embedded memory IP for semiconductors. MoSys’
patented 1T-SRAM(R) and 1T-FLASH(TM) technologies offer a combination
of high density, low power consumption, high speed and low cost that
is unmatched by other memory technologies. MoSys licensees have
shipped more than 110 million chips incorporating 1T-SRAM,
demonstrating excellent manufacturability in a wide range of silicon
processes and applications. MoSys is headquartered at 755 N. Mathilda
Avenue, Sunnyvale, California 94085. More information is available at
https://dev-mosys-web-04-19.pantheonsite.io. 1T-SRAM is a registered trademark and 1T-FLASH
is a trademark of MoSys, Inc.

CONTACT:
MoSys
Jim Pekarsky, CFO, +1 408-731-1800
jimp@mosys.com
or
Investor Relations:
Shelton Group
Beverly Twing, +1 972-239-5119 x 126
btwing@sheltongroup.com

SOURCE: MoSys, Inc.