FOR IMMEDIATE RELEASE

Contacts:
Christopher O’Reilly Matthew Hutchison
MHA Event Management Brodeur Porter Novelli
617-551-9800 202-973-1374
coreilly@mha.com mhutchison@brodeur.com

Steve Jobs to Keynote at MACWORLD Expo Boston

BOSTON, July 31, 1997 — MHA Event Management and Apple Computer Inc.
announced today that Apple cofounder Steve Jobs will deliver the opening
keynote address at MACWORLD Expo Boston at 9 a.m. Aug. 6.

The East Coast’s premier showcase for software and hardware vendors
supporting the Mac OS platform, MACWORLD Expo will be held at the Bayside
Exposition Center and World Trade Center. Conference sessions run Aug. 5 –
8; the exhibition floor is open Aug. 6 – 8.

Jobs, co-founder of Apple, is chairman and CEO of Pixar, an Academy
Award-winning computer animation studio that creates next generation
animated feature films and interactive CD-ROM titles. He serves as a
strategic advisor to Apple’s Board of Directors and executive management
team.

ABOUT MACWORLD Expo

MACWORLD Expo is sponsored by Macworld magazine which is published by
Macworld Communications, Inc. Macworld Communications, a business unit of
International Data Group (IDG), is the world’s leading IT media and
research company. Macworld Communications is the world’s largest Macintosh
Buyer Resource and has a diverse product line of integrated media,
including 25 local-language Macworld editions around the world, domestic
and international MACWORLD Expos, Macworld On-Line (www.macworld.com),
reference books, CD ROMs and international market research. IDG publishes
more than 275 computer magazines and newspapers and 430 book titles,
produces 90 expositions and provides IT market analysis through 41 research
centers worldwide. Company information and access to more than 125
worldwide sites is available at www.IDG.com.

MACWORLD Expo in Boston and San Francisco is managed by MHA Event
Management, a premium provider of information events that shape the agenda
of Information Technology business. MHA manages and produces leading IT
markets events such as E3 the Electronic Entertainment Expo, ComNet and
the Telecommuting & Home Office Exposition & Conference. Every year, more
than 2,000 exhibiting companies and more than 250,000 professionals,
consumers, press and analysts attend MHA events to buy, sell, network and
influence IT purchasing strategies. MHA Event Management is an IDG
Strategic Partner. For more information on MHA Event Management, call
617-551-9800 or visit us at www.mha.com.

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