Apple

When asked a few years ago if they might someday offer a Mac that works like a Microsoft entertainment PC, Apple executives joked that they were instead focusing on the convergence of computers and toasters.

The basic concept of a PC powering a living room multimedia hub -- as pushed by Microsoft Corp., at least -- was flawed, they said.

People simply don't interact with a TV the same way they do with a computer, said Apple CEO Steve Jobs.

Apple has warned that the Mac OS X operating system contains 13 security flaws, some of them serious. The company issued a cumulative patch for the bugs today.

The flaws could allow remote code execution, security breaches, spoofing, cross-site scripting, denial-of-service attacks and other problems, according to Apple. Some of the flaws can be exploited from the Internet.

The SANS Institute last week issued its list of the Top 20 vulnerabilities across all operating systems, including details of what it considers to be critical vulnerabilities in Mac OS X. The company wrote: "Although Mac OS X has security features implemented out of the box such as built-in personal firewall, un-necessary services turned off by default and easy ways to increase the OS security, the user still faces many vulnerabilities."