ANNOUNCING QUARTERDECK MOSAIC, THE INTERNET BROWSER WITH UNPARALLELED
EASE-OF-USE AND THE MARKET'S MOST ROBUST FEATURES

SANTA MONICA, Calif., June 15, 1995--Quarterdeck Corporation (Nasdaq:QDEK),
announced today its Internet browser, Quarterdeck Mosaic, that delivers
unparalleled ease-of-use and robust, powerful features previously
unavailable in the market. In addition to assisting users in exploring and
obtaining information from the Internet's World Wide Web (WWW),
Quarterdeck Mosaic allows the user to filter the information they find and
organize it into customized folders with a simple drag-and-drop
interface.

Quarterdeck Mosaic is designed for new as well as experienced Internet
users. Signing up is simple with the product' s Connect and Play automated
setup program and easy dial-up SLIP/PPP connections to the Internet.
Connect and Play enables users to set up an account electronically in
minutes with the nation's leading Internet service providers such as
NETCOM, UUNET, Portal, PSInet, and CERFnet. In addition, support is
provided for Quarterdeck Mosaic users to easily access another 50 regional
and local Internet service providers.

In an effort to orient newcomers to the WWW, Quarterdeck Mosaic includes a
directory of preinstalled Web addresses organized by topic. Experienced
users will appreciate the high-performance, multi-threading data engine
that retrieves and displays multiple documents simultaneously, so they can
view multiple HTML (Hypertext Markup Language) documents in separate
windows, or view one document while another is being downloaded. Improved
document caching stores the most current documents locally and quickly
retrieves them on subsequent accesses. In addition to its support for the
Web, Quarterdeck Mosaic provides integrated Gopher, FTP, news, and mail to
capabilities and support for viewing multimedia data, including graphics
and sound.

"Quarterdeck Mosaic is designed to allow users to easily access, find and
manage the information on the World Wide Web," said Emerick Woods,
Quarterdeck Vice President and General Manager, Internet Products Group.
"Quarterdeck Mosaic is another addition to our Internet product family
that provides businesses and individuals with the power to take control
and harness the vast resources available on the Internet."

The unique features of Quarterdeck Mosaic include its multiple history
lists, "hotlist" manager, and Link Tree navigator, all of which can be
activated at any time and placed on-screen for easy reference. Quarterdeck
Mosaic allows users to maintain multiple history lists, including a local
history which tracks and records Web sites visited during the most recent
session, and a global history, for tracking and recording every Web site
they have ever visited in Quarterdeck Mosaic. An annotation feature gives
users the option of adding electronic notes on every Web page that is
viewed. With Quarterdeck Mosaic, users can compile multiple "hotlists" and
store their favorite Web sites in folders that can be customized to their
personal preferences. Since the folder format is similar to Windows' File
Manager, users can create folders intuitively and drag-and-drop Web pages
into and out of the folders without any knowledge of how to write Web
addresses.

The Link Tree navigator displays all of the hypertext links within each Web
page so the user can access a link without having to scroll through it.
The user simply clicks on the address of their choice in the Link Tree and
is immediately taken to the new page. Another Link Tree appears, showing
the hypertext links within that page. The Link Tree continues to spin a
Web map as the user explores the WWW and also highlights the links
previously accessed for future reference.

It is expected that Quarterdeck Mosaic will retail for below $30 (US). The
product will be available in the market by the end of June 1995.

In addition to Quarterdeck Mosaic, Quarterdeck InternetSuite and
Quarterdeck WebServer were also announced today. The fourth Internet
product from Quarterdeck, WebAuthor, was introduced in March.
Quarterdeck's Internet family is designed to provide businesses and
individuals with the tools to make their use of the Internet efficient,
productive and profitable.

Quarterdeck Corporation is a leader in the development of software products
that enhance the performance of computers by maximizing the usefulness of
existing PC software, hardware and networking systems. Quarterdeck
develops, markets and supports software products in three strategic
business areas: Utilities; Remote Computing; and Internet Products.

Quarterdeck Corporation is located at 150 Pico Boulevard, Santa Monica, CA,
90405. Further product, availability and pricing information can be
obtained by calling (310) 392-9851; through Quarterdeck's Internet Web
site at http://www.qdeck.com/; or by sending a mail request to
info@qdeck.com.
 
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