Test your tech savvy

We recently asked more than 13,000 online subscribers to Consumer Reports about their knowledge of seven techy terms. Percentages of those confessing they "don’t have a clue" ranged from 1 percent for HDTV to 29 percent for VoIP.

For each term, men were more likely than women (and those under age 40 more likely than older folks) to say they "know all about this one." (We didn’t determine whether they were right.) For instance, 59 percent of men but just 28 percent of women said they knew all about 1080p. To test your knowledge, match each term to its definition. Answers are below the quiz.