Two years ago our school started a digital reading plan and gave a 11 to every student. The change was not easy. Teachers first had to learn the new 12 that runs the reading lessons, and the school 13 often slowed down when three hundred people went online at the same time. A few machines even 14 during the week of the first exams. Today, however, few teachers want to go back. Students hand in their homework through one simple 15, and anyone who misses a lesson can watch it again at home. Most teachers now say the technology finally saves time.
Ten years ago most people kept their files on one computer at home. If that 16 was stolen or damaged, the photos were gone forever. Today many of us store everything in the 17 instead. Companies keep our files on huge machines far away, and we open them with a password or a short 18 sent to our phone. The change is useful, but it does bring risks. A single 19 at one company can expose millions of private records. Experts therefore advise users to check their settings in a 20 way at least twice a year.