SUNNYVALE, Calif.–(BUSINESS WIRE)–Jan. 16, 2009MoSys, Inc. (NASDAQ: MOSY), a leading provider of high-density
system-on-chip (SoC) memory intellectual property (IP), today announced
it would release its fourth quarter and full year 2008 financial results
on Monday, February 9, 2009, after the market closes. Following the
release, Len Perham, MoSys’ President and Chief Executive Officer, and Jim Sullivan, Chief Financial Officer, will host a live audio Webcast
and conference call at 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time).

Fourth Quarter and Fiscal Year 2008 Conference Call/Webcast

To access the call, please dial 1-888-679-8033 and enter the pass
code 14111930 at least 10 minutes prior to the start of the call.

Date: Monday, February 9, 2009

Time: 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time)

Conference Call Number: 1-888-679-8033

International Call Number: 1-617-213-4846

Pass Code: 14111930

The conference call replay will be available for 48 hours, beginning two
hours after the call. The replay number is 1-888-286-8010 with a pass
code of 52745907. International callers should dial 1-617-801-6888 and
enter the same pass code at the prompt.

In addition, the live audio conference call and replay will be available
on the investor relations section of the Company’s Web site at

One may also pre-register their attendance for the conference call,
which will enable immediate entry into the call. To pre-register
please go to:

About MoSys, Inc.

Founded in 1991, MoSys (NASDAQ: MOSY), develops, markets and licenses
innovative embedded memory 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’ 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

MoSys and 1T-SRAM are registered trademarks of MoSys, Inc.
1T-FLASH(TM) is a trademark of MoSys, Inc.

MoSys, Inc. Jim Sullivan, 408-731-1800
Shelton IR
Beverly Twing, 972-239-5119 x126
Acct. Manager

Source: MoSys, Inc.