Sometimes you can be "invited" into a computer system as a guest - although you usually have restricted access.
an anonymous person who is posting to the forum
a guest is someone who is either not logged into their BbUsername, or someone not registered with BbBoard. Sometimes a guest is actually a search engine spider like a Googlebot, gathering information for indexing pages to come up in search results. Guest posting can be allowed or disallowed in each Forum's Settings. If a Forum is able to be viewed by Guests then expect it to be spidered and to be ranked for search string results.
an unregistered user (or a user who has not logged in) who can read messages, but can only post in some forums
a person who is not registered, but reading in the public forums
a person who is not subscribed to the NFME mailing list or NFME forum, but has been specifically invited by a current Driver or Spectator
Use for person(s) invited to appear in the context of a visual image work, most often a television talk show. Guests normally appear as themselves, but may also appear as characters in short skits. When in doubt as to whether to apply this term or the related terms "Cast" and "Performer," prefer "Cast" or "Performer."
When you come to the forum, you will be seen as a Guest if you are not a registered member or if you have not logged in. A Guest can read posts to all of the boards, but can only make new posts or replies on the Products and Policies Information board and the Scratch Pad board. To post on other boards, you must be a member and be logged in. Guests can not send or receive private messages.
The default Username of the Rosetta Stone program. You can either log in as Guest or choose a different Username and create a user profile. The Guest log in allows you to change program settings, but Test results will not be saved.
A way to log in to most co-workers' computers.
A guest is anyone who does not have a logon id for the site. A guest is able to search the membership directory, browse the entire site, and submit events to be listed and post items in the library.
If you are a guest you can only view messages. To post a message, you must become a member.
User who's not logged in to your board
A user who is logged on to a file server without a registered user name and password.
Those that are not part of the site, but are visiting. Guests have no other ability than to post and explore the site.