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This article is about the computer terms. Download is also an industrial band led by CEvin Key. Download is also a British heavy metal festival. Uploading is also a hypothetical transfer of a human mind into a computer.
The terms upload and download often create confusion, as their definitions depend on the context.
Download and upload refer to the transfer of information between computers.
The person/computer sending the information refers to the transfer as an upload, while the person/computer receiving the information refers to it as a download.
These are the definitions used by ISPs. If the customer is sending information, it is an upload; if they are receiving information, it is a download.
Most people use the term download when they are receiving a file, and upload when they are sending a file over the Internet.
In either case, information is transferred both ways to manage the download. This is often the reason people get confused.
The act of transferring a file from one web server to another, while technically a simultaneous download and upload, is often called sideloading.
An exception is when talking about data transfers between space vehicles and ground stations; in this case, every transfer from the space vehicle is a download, while every transfer to it is an upload.
As a noun, a download or upload is the information transferred or the act of transferring it.
In surfing the World Wide Web the term downloading is not usually used for simply bringing up a web page, but rather for transferring a larger file and/or directly saving it. In a network, the term downloading is not usually used for copying files from one network device to another even if one computer is acting as a host (see copy.)
See also
To upload files to Wikipedia, or for instructions on this, see the page.
To download Wikipedia database, see http://download.wikimedia.org.
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