A Smalltalk process for periodically identifying unreferenced objects and deallocating their memory.

Graphics context.

One of the methods used in HTTP requests. A GET request is used to retrieve data from an HTTP server. See also POST.

A variable that any method in any object can access.

A type of interface that enables users to communicate with a program by manipulating graphical elements, rather than by entering commands. Typically, a graphical user interface includes a combination of graphics, pointing devices, menu bars, overlapping windows, and icons.

In the Common Graphics subsystem, an object that contains information about drawing attributes.

A team member who belongs to a group that is responsible for developing an application.

Graphical user interface.