Did the user send enough data for a half hour's worth of video?

What if multiple users send data at the same time?

Users must send their data to the server in order to use them.

Users would sometimes send their changes back into the magazine for later publication.

To use this service, the user sent an email to @teleflip.com.

In addition to playing games, the users frequently send messages.

Nor can the user send a "subject" line, which might be used to note his or her identity.

It allows users to send and receive up to 150 characters to each other.

Examples include E-mail, where one user can send a message over the network to another.

Monitoring the complaint rate is one of the ways they can control what their users are sending.