Study the Active vocabulary. Insert the missing words. 1. In lighting electricity through 2. What do you like more: watching or listening to the _? 3. I can't how people lived without devices. 4. Do you have any _at home? No, I have only disks. I'm for 5. Does this camera have much _? No, this camera is not digital. It has a 5-millimetre 6. Devices which have _, and not tubes are much smaller and much more powerful. 7. The number of digital devices_ every year. We depend on more and more. 8. Many electronic devices are used for _, not for work. 9. Computers and digital cameras are devices. It means that they can exchange information.

1. In today's world, lighting electricity through filament bulbs is becoming less common due to the energy efficiency of LED lights. 2. What do you like more: watching movies or listening to music? 3. I can't imagine how people lived without electronic devices. 4. Do you have any records at home? No, I have only CDs. I'm all for digital music. 5. Does this camera have much memory? No, this camera is not digital. It has a 5-millimeter lens. 6. Devices which have transistors, and not tubes, are much smaller and much more powerful. 7. The number of digital devices increases every year. We depend on them more and more. 8. Many electronic devices are used for entertainment, not for work. 9. Computers and digital cameras are networked devices. It means that they can exchange information.