Upload
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Uploading and downloading are related terms used to describe the transfer of electronic data between two computers or similar systems.
Download
Their primary usage is as a verb: to download is to receive data from a remote system, such as a website, FTP server, or other similar systems.
Upload
By extension, the terms can be used as nouns. In this context, an upload is any file that has been uploaded, particularly if it is awaiting the recipient's attention. A download is any file that is offered for downloading or that has been downloaded.
Sideload
Similar, but is less commonly used, the transfer of data from one remote computer to another is called sideloading
See also