11) What is the best way to protect a computer from external threats?
12) What is a CPU?
13) What is the main difference between a desktop computer and a laptop computer?
14) What type of memory is needed to store data and programs permanently?
15) What type of device is a graphics card?
16) What type of device is a mouse?
17) What type of file system that allows you to access files stored on the hard drive?
18) What is the most popular operating system for PCs?
19) What does Mbps measure?
20) What is the most popular search engine?