Many newsgroups servers operate to grant access for users to usenetbinaries easily. An account will be provided from your ISP, your internet provider. But most of them do not operate their own newsgroups servers anymore and if they do they mostly censor usenetbinaries.
Years ago news servers and readers were run independently on the same system. With technology advancing the providers use separated newsreader software, and these programs are similar to an email client but accesses Usenetbinaries servers.

Newsgroups servers are exceptionally difficult to maintain and administer due to the huge amount of usenetbinaries data involved, a small customer base as well as a disproportionately huge volume of client traffic. On occasions ISPs outsource news to specialized external sites, which will appear as usual to the user. There are numerous sites that carry restricted newsfeeds, as well as a limited amount of newsgroups. Mostly excluded from the ISP newsfeeds are binary newsgroups which carry music, images, videos, computer games as well as software!

If you’ve got an ISPs that doesn’t not carry usenetbinaries or restricted feeds make use of specialized Usenet providers which offer these paid services to users. They way in which newsgroups are accessed is by using special client software. There are newsreader clients available for all major operating systems. However, due to the rise of the global web, web front ends are now far more common. So you pick special NZB files from the web and load them in your Usenet server account.

The majority of Usenet newsgroups are non-moderated and any messages or usenetbinaries that are submitted by their users are publicly displayed for everyone to read.
Once articles have been submitted there are no cancellation commands except the retention of the usenetbinaries newsgroups server.
Once a message reaches a server, the server forwards the message to all the networks which have not yet seen the article or file.

Newsgroups servers only store one copy of the message per server, and every server makes the messages and usenetbinaries available to the readers that are able to access the certain newsgroups.
Servers share their resources by exchanging them. So posts or usenetbinaries can’t really get deleted because they are always backed up by many other usenet servers in the network.

Now get yourself a cheap newsgroups provider and download all the usenetbinaries you were always desperately searching for!!!