Press Release

Teradyne's Connector Molding & Stamping Facility
Achieves ISO 14001 Certifications

International Environmental Management System Standard Awarded to
Winston-Salem, North Carolina Plant

Nashua, NH – August 16, 2004 – Teradyne, Inc. (NYSE: TER), Connection Systems Division (TCS), the industry leader in high-performance connection systems, today announced that its Winston-Salem, North Carolina connector molding & stamping operation (TCMS) recently received certification to the ISO 14001 Environmental Management Standard.

The National Standards Authority of Ireland (NSAI), an independent certifying agency, conducted an audit of Teradyne Connection Systems' environmental management systems at its Winston-Salem plant and issued the ISO 14001 certification on July 5, 2004. The Division’s other facilities in New Hampshire, Ireland and Mexico are also certified to the ISO 14001 standard.

“The company’s safety practices are given a high priority at all levels and functions throughout their facilities,” commented Paddy Breen, Executive Director of Client Services for the NSAI. “Teradyne fosters an excellent culture for sustaining regulatory and environmental compliance with an emphasis on employee awareness.”

TCMS provides precision metal stamping and conventional and reel-to-reel insert molding of components for Teradyne’s high-speed connector products, such as the industry-leading VHDM platform. The facility is part of Teradyne’s vertically integrated manufacturing strategy to provide high-quality connectors in high volumes to OEM (original equipment manufacturing) and CM (contract manufacturing) customers in the telecommunications, networking, storage and computer markets.

“We are very proud of this accomplishment,” said James Sharp, TCMS Operations Manager. “ISO 14001 certification demonstrates Teradyne’s commitment to operational excellence while seeking ways to continually improve our environmental and safety performance.”

About ISO
The International Organization for Standardization (ISO) is a worldwide federation of national standards bodies from about 140 countries, one from each country. ISO is a non-governmental organization established in 1947. The mission of ISO is to promote the development of standardization and related activities in the world with a view to facilitating the international exchange of goods and services. For more information visit www.nsaiinc.com.

About Teradyne Inc.
Teradyne (NYSE:TER) is a leading supplier of Automatic Test Equipment and interconnection systems. The company's products deliver competitive advantage to the world's leading semiconductor, electronics, automotive and network systems companies. In 2003, Teradyne had sales of $ 1.4 billion, and currently employs about 6,100 people worldwide. For more information, visit www.teradyne.com. Teradyne is a trademark of Teradyne, Inc. in the US and other countries.

About Teradyne Connection Systems
Teradyne Connection Systems (TCS), a division of Teradyne, Inc., is the leader in high-performance connection systems, designing and manufacturing backplane systems, printed circuit boards and the industry's leading high-speed, high-density connectors. TCS helps OEMs solve system design challenges with integrated interconnect solutions for application in the networking, communications, storage, computer server, and medical equipment markets. For more information visit www.teradyne.com/tcs.