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When you log on to a Windows XP-based computer, you can supply a user name and password, which becomes your default security context for connecting to other computers on networks and over the Internet. However, this user name and password may not provide access to all desired resources. The Stored User Names and Passwords feature provides a way to store additional user names and passwords as a part of your profile. Stored User Names and Passwords is a secured store for password information. With this feature, you can type user names and passwords for various network resources and applications (such as email) one time, and then have Windows automatically supply that information for subsequent visits to those resources without your intervention

UploadColumn is file uploading made easy for Ruby on Rails. Get rolling quickly, with powerful manipulation of uploaded files, like scaling and cropping images. Maintain full control over where your files are stored, easily make uploads work across form redisplays, and a whole bunch more.

attachment_fu facilitates file uploads in Ruby on Rails. There are a few storage options for the actual file data, but the plugin always at a minimum stores metadata for each file in the database.

connect to local computers via Screen Sharing from the menu bar

access BonJour (nee Rendezvous) discovery services from the command line by using the command dns-sd in 10.4, or mDNS in 10.3. There doesn't appear to be a man page for mDNS in 10.3, but it appears that the options for dns-sd, favored in 10.4, work just the same for either command (and in fact the man page for mDNS is present in 10.4). For example, to view all of the ssh shares on Bonjour-enabled computers, try this in the Terminal (replace dns-sd with mDNS if you're on 10.3): dns-sd -B _ssh._tcp .

basic extension tube information, exposure compensation, area covered, magnification, lens-to-subject, distance