What is data? It's information which is stored (= kept) on your computer. What's a search engine? It's a computer program like Google which searches the internet for information. What's a network? It's a set of computers that are connected and can exchange information. What's a username? It's the name or special word you use that allows you to enter a computer program or system. What's a login? When you start to use the computer, you usually type in a name or word that you've chosen. You log on when you start the computer, and you log off when you finish. When you want to use a particular app or website, you log in and then log out to leave it. What is software? It's the programs which are used to to operate a computer. What's an app? An app is a piece of software that you can put on a smartphone or tablet. You can use it to get information or to play a game. What happens if my screen freezes? You can't move text or images (= pictures on a computer) because there's something wrong with the equipment or programs.