SUNNYVALE, Calif.–(BUSINESS WIRE)–Jan. 22, 2008–MoSys, Inc.,
(NASDAQ: MOSY), a leading provider of high-density system-on-chip
(SoC) memory and analog/mixed-signal intellectual property (IP), today
announced the appointment of James W. Sullivan as its Vice President
of Finance and Chief Financial Officer. Mr. Sullivan brings over 17
years of experience in accounting and finance to MoSys and will be
responsible for all financial, administrative and investor relations
functions of the Company.

“Jim is a seasoned financial executive with broad public and
private company experience in the technology industry,” stated Len
Perham, President and CEO of MoSys. “In addition to his financial
management expertise, he is well versed in the areas of compliance and
regulatory reporting, investor relations and strategic development,
which are critical components of a well-managed public company. We are
delighted to have Jim join our leadership team and believe he will be
instrumental in our success as we drive the future growth of our
business.”

Mr. Sullivan joins MoSys from Apptera, Inc., a venture-backed
company providing software for mobile advertising, search and
commerce, where he served as Vice President of Finance and CFO. Prior
to joining Apptera, he was the Vice President of Finance and CFO at
8×8, Inc. (Nasdaq: EGHT), a leading provider of voice over Internet
protocol communication services. Mr. Sullivan’s prior experience
includes various positions at PricewaterhouseCoopers LLP. He holds a
Bachelor of Science degree in Accounting from New York University and
is a Certified Public Accountant.

As an inducement material to Mr. Sullivan’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 190,000 shares of common stock at an exercise price of $3.73
per share, which equals the closing price of a share of Mosys common
stock on the NASDAQ Global Market on January 18, 2008.

Len Perham and Jim Sullivan will host a conference call and live
audio webcast today at 5:00 p.m. Eastern Time (ET). Interested
investors and analysts are invited to dial into the call for a
discussion of the latest corporate updates. To access the call, please
utilize the telephone numbers provided below. The live audio webcast
may be accessed in the investor relations section of the Company’s Web
site at http://www.mosys.com.

Webcast/Conference Call Access Information:

To access the conference call, please dial 1-888-713-4215 and
enter the pass code 86076101 at least 10 minutes prior to the start of
the call. International callers may dial 1-617-213-4867 and enter the
same pass code at the prompt.

The conference call replay will be available for 48 hours
beginning two hours after the call. The replay number is 888-286-8010
with a pass code of 59714039. International callers should dial
617-801-6888 and enter the same pass code at the prompt.

In addition, the audio webcast replay may be accessed in the
investor relations section of the Company’s Web site at
http://www.mosys.com.

Interested participants may also pre-register their attendance for
the conference call, which will enable immediate entry into the call.
To pre-register, please use the following link:
https://www.theconferencingservice.com/prereg/key.process?key=PU43GF39
3 (Due to its length, this URL may need to be copied and pasted into
your Internet browser’s address field.)

About MoSys, Inc.

Founded in 1991, MoSys (NASDAQ: MOSY), develops, licenses and
markets innovative memory and analog/mixed-signal technologies for
semiconductors. 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. 1T-SRAM
technologies also offer the familiar, refresh-free interface and high
performance for random address access cycles associated with
traditional SRAMs. In addition, these technologies can reduce
operating power consumption by a factor of four compared with
traditional SRAM technology, making them ideal for embedding large
memories in System on Chip (SoC) designs. MoSys’ licensees have
shipped more than 135 million chips incorporating 1T-SRAM embedded
memory technologies, demonstrating excellent manufacturability in a
wide range of silicon processes and applications. MoSys’
analog/mixed-signal products feature a number of industry firsts,
including the first DVD front end IP to support both Blu-ray and HD
DVD formats. Using MoSys IP, system vendors can achieve best-in-class
price/performance in markets such as home entertainment and graphics
applications; mobile consumer devices; and networking and storage
equipment. MoSys is headquartered at 755 N. Mathilda Avenue,
Sunnyvale, California 94085. More information is available on MoSys’
website at http://www.mosys.com.

1T-SRAM(R), 1T-FLASH(TM), and GigaCell(TM) are registered
trademarks of MoSys, Inc.

CONTACT:
MoSys, Inc.
Len Perham, CEO, 408-731-1800
lperham@mosys.com
or
Shelton IR
Beverly Twing, Acct. Manager, 972-239-5119 x126
btwing@sheltongroup.com

SOURCE: MoSys, Inc.