Digital Demonstrates High-speed, Internet Access Via Cable TV At Western
Cable Show

ChannelWorks Internet Brouter and RoamAbout Wireless LAN Products
Underscore CableNet '94 Theme "Internet via Cable"

ANAHEIM, California -- November 30, 1994 -- To underscore its commitment to
provide high-bandwidth multimedia solutions for the cable industry,
Digital Equipment Corporation today showcased its ChannelWorks Internet
Brouter at the Western Cable Show, demonstrating Internet access via cable
TV. As the Internet evolves as a basis for the information superhighway,
high-speed access is essential to tap the wealth of available information.
Digital's ChannelWorks products provide this level of access to the
Internet.

The ChannelWorks Internet Brouter is unique in the industry as a
one-product solution, providing high-speed Internet access over standard
cable television networks. Digital's ChannelWorks Brouter, announced
during the summer, delivers 10 megabits per second (Mb/s) Ethernet
connectivity over the cable TV network. ChannelWorks enhances the power of
the Internet by delivering high-speed connectivity, enabling users to
engage the full range of Internet applications without lengthy
transmission delays. Not only is this ideal for interactive multimedia
applications, it is also economical for all Internet activity since
transactions take less time.

At the show, Digital demonstrated:

- Wireless access from the office to the Internet via cable
- High-speed access to America Online databases including
  Internet access
- Internet security capabilities for CableNet '94

"The Internet's expanding role in industry, government and academia is
constrained by the demands of high-bandwidth applications," according to
Dr. Laurence Walker, vice president and general manager of Digital's
Network Product Business. "These demonstrations show Digital's continuing
efforts to 'raise the speed limit' on the information highway through
improved connectivity with cable networks. We're focused on providing
high-speed 'on-ramps' to the highway, as well as providing enhanced
security for users, hosts and networks."

Evolving Role for Digital's ChannelWorks Product Family

In response to the convergence of the cable and computer industries and a
customer interest in high-bandwidth data applications, Digital's Network
Product Business offers the ChannelWorks Bridge and ChannelWorks Internet
Brouter as part of its wide range of networking products to provide the
most flexible and comprehensive set of networking products for this
market. The ChannelWorks Internet Brouter is based on the design of the
popular ChannelWorks Bridge, which delivers 10 Mb/s Ethernet connectivity
over cable networks for metropolitan area networks. The distance
capability of the ChannelWorks products has recently been improved, from
70 cable miles to 160 cable miles round trip. The ChannelWorks Brouter
extends the Bridge functionality, providing access to, and routing of,
Internet traffic at speeds significantly greater than those of traditional
leased lines.

Dozens of cable operators have already seen the potential of high-speed
data transmission services as an important new service and revenue stream.
Digital believes that forward-looking cable companies will recognize the
ChannelWorks products as enablers for this significant business
opportunity.

Internet Access for Mobile Users

As part of its seamless network access strategy, Digital is providing
wireless Internet access with a network solution combining Digital's
ChannelWorks products and RoamAbout wireless LAN products. These products
now couple the freedom of wireless communications with integrated
Internet, WAN and LAN connectivity. For example, in one demonstration at
the Western Cable Show, a laptop user roaming about the exhibit floor
maintained the connection to services provided by the cable network,
including access to the Internet, in the same fashion as a peer seated at
a desk.

The RoamAbout Access Point and RoamAbout PCMCIA Network Adapter, the
highest performing wireless duo in the market today, offer distinctive
functionality, including cell-to-cell roaming within a building and
enhanced SNMP management. The RoamAbout Access Point serves as a bridge
between the laptop, the LAN, and the ChannelWorks Internet Brouter. It
operates in conjunction with the RoamAbout PCMCIA Network Adapter, a
credit card-sized adapter and radio modem that attaches to the laptop. In
this way, data is transferred from the roaming laptop to the access point
which connects the wireless user to the wired LAN. The ChannelWorks
Internet Brouter sits on the LAN and provides access to the cable network.
Wireless users can roam from the 800 foot coverage area of one RoamAbout
Access Point to another with a smooth, seamless hand-off.

ChannelWorks Accelerates America Online Delivery

Digital partnered with online services provider America Online at the show
to demonstrate high-speed access to data-intensive applications, including
the Internet, via cable TV technology.

The growth of popular data-intensive applications such as distance
learning, interactive games, and transfer of large files require
high-speed connections for rapid interaction. Digital demonstrated that
its ChannelWorks products eliminate the constraint of low-speed access
over traditional phone lines through on-demand, high-bandwidth access to
these services. The symmetry of high-speed connections in both directions
enabled fast and easy use of America Online's services including
interactive applications.

When Digital connected its ChannelWorks Internet Brouter to data-intensive
America Online applications via cable TV, attendees at the show observed
dramatic increases in performance of these services.

Digital Delivers Internet Security for CableNet '94

Digital also provided Internet security for all CableNet '94 Exhibit
participants at the show. Highlighting the CableNet theme of "Internet via
Cable," the exhibit demonstrated the convergence of cable and data
networking technologies and interconnected the network and computer
products of over 45 companies on the show floor.

At the center of CableNet '94 security are Digital's Internet Security
Services, which help make private computer networks and databases secure
from intrusion from non-secure networks such as the Internet. These
Internet Security Services combine Digital's Screening External Access
Link (S.E.A.L.) with consulting services for customized solutions.
S.E.A.L. is a set of Digital hardware and software components that control
and monitor access among secure private networks and non-secure networks.
Digital's Internet Security Services were announced in May of this year.

As a leader in networking, Digital will continue to work with the cable TV
industry's multiple systems operators to develop new solutions for
high-speed, broadband data communications over cable. Digital is currently
chairing the IEEE 802.14 committee to develop standards for the delivery
of multiple services over the cable infrastructure.

Digital Equipment Corporation is the world's leader in open client/server
solutions from personal computing to integrated worldwide information
systems. Digital's scalable Alpha platforms, storage, networking, software
and services, together with industry-focused solutions from business
partners, help organizations compete and win in today's global
marketplace.

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