The main difference between Upload and Download is that the Upload is a sending of data from a local system to a remote system and Download is a to receive data to a local system from a remote system.
In computer networks, to upload is to send data to a remote system such as a server or another client so that the remote system can store a copy.
In computer networks, download means to receive data from a remote system, typically a server such as a web server, an FTP server, an email server, or other similar systems. This contrasts with uploading, where data is sent to a remote server.
A download is a file offered for downloading or that has been downloaded, or the process of receiving such a file.
to transfer data or files from a peripheral or subordinate system to a larger or more central one; especially from a personal computer to an Internet server.
“You will have to convert your photograph to a jpg format if you wish to upload it.”
Such a file transfer.
A file transfer to the local computer.
“The download took longer than I expected.”
A file that has been, or will be transferred in this way.
“I got the download but it wouldn’t work on my computer.”
To transfer (computer data, especially as one or more files) from a remote computer (server) to a local computer, usually via a network.
“You can download a trial version of the program for thirty days to determine whether you want to purchase the full version.”
to upload; to copy a file from a local computer to a remote computer via a network.
to transfer a file to or from removable media.
“I needed to download photos to a CD-ROM”
to install software.
transfer (data) from one computer to another, typically to one that is larger or remote from the user or functioning as a server
“software is uploaded and downloaded”
“you can upload your prepared text”
an act or process of uploading data
“they are also adding the ability to pause an upload if you need to go off and do something else”
“the site allowed the upload of videos”
a file or set of files that has been uploaded
“an upload of the track is streaming below”
copy (data) from one computer system to another, typically over the Internet
“it would be wise to download your program to another computer before testing it”
an act or process of downloading data
“we have music available for free download”
“movie downloads were painfully slow”
“download speeds of 200 to 300 kilobits per second”
a file or set of files that has been downloaded
“digital music downloads”