EMC spent $153 million to buy Kashya, which sells appliances that provide disaster recovery and data replication, and it also bought Interlink Group, a professional services firm, for an undisclosed sum. ... Mark Barrenechea, executive VP and CTO at CA, will leave the software company next month to join tech investment firm Garnett & Helfrich Capital as a director. ... ICANN, the Internet Corporation for Assigned Names and Numbers, voted 9-to-5 to reject the controversial .xxx domain for sexually oriented Web sites. ... Despite states receiving $2.1 billion in federal funds since 2003, many emergency responders still can't communicate with each other, Homeland Security Secretary Michael Chertoff told a Washington conference. ... The Imperial College of London has teamed up with Intel, Lucent Technologies, Telefonica, and others to produce a prototype for an in- tegrated set of antennas and wireless networking technologies to connect homes and offices. ... Struggling high-end computing vendor Silicon Graphics filed for Chapter 11 bankruptcy protection. ... Intel's new name for its desktop and notebook multicore processors is Core 2 Duo. ... A U.K. judge ruled that Apple Computer's iTunes online store doesn't infringe on trademarks held by the Beatles' Apple Corps music label.