Teradyne, Inc. (NYSE: TER) will release financial results for the first quarter 2012 on Wednesday, April 25 at 6:00 p.m. Eastern Daylight Time (EDT) or later. A conference call to discuss the first quarter results, along with management's business outlook will follow at 10 a.m. EDT, Thursday, April 26. 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 approximately two hours after the completion of the call. The replay number in the U.S. & Canada is 855-859-2056. The replay number outside the U.S. & Canada is 404-537-3406. The pass code for both numbers is 71342974. A replay will also be available on the Teradyne website www.teradyne.com. Click on "Investors" for a link to the replay. The replay will be available via phone and website through May 12, 2012. About TeradyneTeradyne (NYSE: TER) is a leading supplier of Automatic Test Equipment used to test semiconductors, wireless products, data storage and complex electronic systems which serve consumer, communications, industrial and government customers. In 2011, Teradyne had sales of $1.4 billion and currently employs approximately 3,300 people worldwide. For more information, visit www.teradyne.com. Teradyne(R) is a registered trademark of Teradyne, Inc. in the U.S. and other countries.