1. digital
2. computer
   1. software
   2. update
   3. virus
   4. tablet
   5. upgrade
   6. desktop
   7. download
   8. install
   9. log onto/start/boot up a computer： You will need a user name and password in order to log onto the computer.
   10. reboot/restart a computer： You may need to restart your computer after installing the update.
   11. Please log off the network and shut down your computer before you leave the office.
   12. If the computer keeps crashing unexpectedly, check to make sure you don't have a virus.
   13. All our records are held on computer.
   14. I've been sitting at the computer all day.
   15. Right click to download the file onto your computer.
3. 主要主題 6
4. network
   1. internet
   2. cable
   3. Wi-Fi
   4. devices
5. e-commerce
   1. privacy
   2. option
   3. convenient
   4. rival
   5. feature
6. technician
   1. collaborate
   2. maintenance