T

taskbar

the bar at the bottom of the Windows desktop that displays active applications. The taskbar enables you to easily switch between applications and to restore, move, size , minimize, maximize, and close applications.

TCP/IP

an abbreviation for a pair of networking protocols. Transmission Control Protocol (TCP) is a standard protocol for transferring information on local area networks such as Ethernets. TCP ensures that process-to-process information is delivered in the appropriate order. Internet Protocol (IP) is a protocol for managing connections between operating environments. IP routes information through the network to a particular operating environment and fragments and reassembles information in transfers.

thread

a single path of execution of a process in a single CPU, or a basic unit of program execution in a thread-enabled operating system. In an SMP environment, which uses multiple CPUs, multiple threads can be spawned and processed simultaneously . Regardless of whether there is one CPU or many, each thread is an independent flow of control that is scheduled by the operating system. See also SMP (symmetric multiprocessing), thread-enabled operating system, threading.

thread-enabled operating system

an operating system that can coordinate symmetric access by multiple CPUs to a shared main memory space. This coordinated access enables threads from the same process to share data very efficiently .

threading

a high-performance method of data I/O or data processing in which the I/O or processing is divided into multiple threads that are executed in parallel. In the boss-worker model of threading, the same code for the I/O or calculation process is executed simultaneously in separate threads on multiple CPUs. In the pipeline model, a process is divided into steps, which are then executed simultaneously in separate threads on multiple CPUs.

title bar

under Windows, an element of a window that displays the title of the window. The title bar is at the top of the window and is highlighted if the window is active.

toolbar

in Windows, a part of the SAS windowing environment that contains icons that you can associate with SAS commands or macros. Selecting an icon executes its associated command or string of commands. The toolbar is located in the menu bar area of the main SAS window. See also toolbox.

toolbox

a part of the SAS windowing environment in which you can place icons that you can associate with SAS commands or macros. Selecting an icon executes its associated command or string of commands. Unlike the toolbar, the toolbox is not attached to the main SAS window.

tooltip

descriptive text that appears when a cursor is placed over certain elements of a graphical user interface, such as the tool icons in a toolbar.