MS Information & Communication Technology / PhotoShop

You always need to have safe password. Its you should not have anything to do with you. It should never actually be the same for what different thing you sign up

You need to have safe passwords. If you don't, you will get hacked. 

If you are not sure on the website don't put in personal information

Pop-ups are annoying ads which pop up and create a new window , when you open a website, hence the name, "Pop ups". They can be removed through multiple means such as installing a pop-up blocker, or simply clicking the "X" in it's upper right corner. They are more common than "Banner ads", ads which are ads which appear on the sides and tops of websites rather than the center. The reason for this is due to more people clicking a pop up than a banner ad.

Power supply supplies power to motherboard and drives.

There are some programs you can install to protect you from spam or things your parents don't want you to see.

A proxy is a server that will mask your IP with different IP addresses. This can be used to download things anonymously, and it's also useful if the thing you're trying to do requires your IP address; this can give the owner your location, so you could use this to mask it (if your location services are turned off).