(SGRAM). Memory that is used for graphic-intensive operations such as 3-D rendering and displaying full-motion video.

A file format for delivering interactive vector graphics and animations over the World Wide Web.

Simple Mail Transfer Protocol host. The location where outgoing electronic mail is dropped off, analogous to the mail slot at the post office.

A measure of how long the average user spends at a website. In contrast to measuring hits, this measure provides an indication of how interesting the website itself is, rather than just how interesting the ad or link is that brings users to the site.

(SMS). Software that can be used to back up data on a network by routing it to designated storage locations.

Synchronous Data Link Control. A data transfer protocol used in IBM's SNA networks. SDLC conforms to ISO’s High-level Data Link Control (HDLC) and ANSI’s Advanced Data Communication Control Procedures (ADCCP).

(SDLC). A data transfer protocol used in IBM's SNA networks. SDLC conforms to ISO’s High-level Data Link Control (HDLC) and ANSI’s Advanced Data Communication Control Procedures (ADCCP).

Programs on the Internet that help users search for files and information. Examples are Infoseek, Yahoo, Lycos, Excite, and many more. Most search engines find files that contain a key word or words typed in by the user. Some search engines specialize in a subject area or type of file. Others, called meta-search engines, query a number of regular search engines and collect the best results.

(SMP). A computer system which has two or more processors connected in the same cabinet, managed by one operating system, sharing the same memory, and having equal access to input/output devices. Application programs may run on any or all processors in the system; assignment of tasks is decided by the operating system. One advantage of SMP systems is scalability; additional processors can be added as needed. However, in an SMP system, if one processor is down, the whole system is down.

Symmetric Multi-Processing. A computer system which has two or more processors connected in the same cabinet, managed by one operating system, sharing the same memory, and having equal access to input/output devices. Application programs may run on any or all processors in the system; assignment of tasks is decided by the operating system. One advantage of SMP systems is scalability; additional processors can be added as needed. However, in an SMP system, if one processor is down, the whole system is down.