Ica

Ica (ē`kä), city (1993 pop. 108,724), capital of Ica dept., SW Peru, on the Pan-American Highway. It is a commercial center for the cotton, wool, and wine produced in the region. There are several summer resorts nearby. Ica is also the archaeological name of the Chincha empire of ancient Peru, which had one of its major centers in the adjacent valley. The empire fell to the Inca in the 15th cent. The Spanish settled the city in 1563. In Ica is the shrine of Our Lord of Luren, the site of colorful pilgrimages. The city has twice been leveled by earthquakes. It has a museum and a university.

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(Independent Computing Architecture) The core of the Citrix Presentation Server product line that enables a Windows or Unix server to run an application for multiple users simultaneously, while sending only the changes in the user interface to the client machine. This is similar to the days of mainframes, but with a graphical interface rather than character based. ICA client support includes Windows, DOS, Macintosh, Unix, Linux, Java and Web browsers. Numerous embedded devices are ICA-enabled as well.

Originally known as the Intelligent Console Architecture, ICA provides a presentation services protocol that governs input/output between the server and clients. ICA also supports local ports for printing and other interconnections.

The Timesharing Is in the Server
The actual timeshared, multiuser processing is provided by the native capabilities of Unix and the Terminal Server options in Windows NT and Windows 2000, the latter being the MultiWin kernel originally developed by Citrix and later acquired by Microsoft. ICA is also used in WinFrame, Citrix's first implementation of this architecture. See Citrix Presentation Server, WinFrame, MetaFrame and Windows Terminal Server.

ICA in Practice

Citrix Presentation Server as well as the earlier WinFrame use the ICA protocol to provide access to a variety of client platforms.