A conference call to discuss Fourth Quarter and Fiscal Year 2004 results, along with management's outlook, will follow at 10:00 a.m. Eastern Standard Time, Wednesday, January 19, 2005. The call will be broadcast simultaneously over the Internet. Interested investors should access the webcast at www.teradyne.com and click on "Investors" at least five minutes before the call begins.
A replay will be available two hours after the completion of the call. The replay number in the U.S. & Canada is 1-800-642-1687. The replay number outside the U.S. & Canada is 1-706-645-9291. The pass code is 3113595. A replay will also be available on the Teradyne web site www.teradyne.com. Click on "Investors" for a link to the replay. The replay will be available via phone and web site through February 2, 2005.
About Teradyne
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 6,300 people worldwide. For more information, visit www.teradyne.com. Teradyne(R) is a registered trademark of Teradyne, Inc. in the US and other countries. All product names are trademarks or registered trademarks of Teradyne, Inc. (including its subsidiaries) or their respective owners.

