to key in your password, to type a secret word that gives you access to a computer or a website, to attach a file, to add a separate element (e.g. a photo, a document, a video) to an email, to have network coverage, to have a signal that lets you make phone calls, etc., to upload a photo, to make an image available on the internet, to delete a message, to remove a piece of text so it cannot be seen any more, to open an attachment , to click on the icon of a file that comes, to buy an app, to pay for a program for your mobile or tablet, to activate flight mode, to switch on a function on your mobile or tablet so you can't go online, to download a file , to copy information or a program from the internet onto your computer hard disk, to install a program , to put a program on a computer.

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