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Sample Rate

The number of times a digital sample is taken, measured in samples per second, or Hertz. The more often samples are taken, the better a digital signal can represent the original analog signal.

Sampling

Converting analog information into a digital representation by measuring the value of the analog signal at regular intervals, called samples, and encoding these numerical values in digital form. Sampling is often based on specified quantization levels. Sampling may also be used to adjust for differences between different digital systems.

Scanner

A scanner is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display.

Script

A collection of statements written in a Scripting Language.

Scripting Language

In web terms: A simple programming language that can be executed by a web browser or a web server.

Search Engine

On the Internet, a search engine is a coordinated set of programs that includes:

  • A spider (also called a "crawler" or a "bot") that goes to every page or representative pages on every Web site that wants to be searchable and reads it, using hypertext links on each page to discover and read a site's other pages
  • A program that creates a huge index (sometimes called a "catalog") from the pages that have been read
  • A program that receives your search request, compares it to the entries in the index, and returns results to you

Second Life

A 3D virtual world social networking program developed by Linden Labs. Users create an avatar (their online image and persona) that they use to meet other users with similar interests, conduct business, participate in group activities, take classes and more.

Semantic Web

This refers to the idea of a web capable of gleaning the subject matter of web pages without relying on keyword phrases within the content. In essence, it is the process of teach a computer to 'read' the page.

SEM

Search Engine Marketing
Promoting your website to increase traffic and search results. This includes paid search, online advertising and more.

SEO

Search Engine Optimization
SEO is the practice of manipulating aspects of a Web site to improve its ranking in search engines. Various approaches are taken to achieve that goal, such as submitting the Web site to directory services, and addressing Web site architecture and content.

Service-oriented architecture

Service-oriented architecture is the concept behind the way applications can be delivered via the Web as a set of services that exist within the Internet rather than on specific computers or servers. Although not strictly a Web 2.0 term, it is the core platform by which Web 2.0 services are accessed and distributed.

SGML

Standard Generalized Markup Language
An international standard for markup languages. The basis for HTML and XML.

Shareware

Software that you can try free of charge, and pay a fee to continue to use legally.

Shockwave

A format (technology) developed by Adobe for embedding multimedia content in web pages.

SHOUTcast

SHOUTcast is a multiplatform freeware digital audio streaming technology developed by Nullsoft. It allows audio content, primarily in MP3 or HE-AAC format, to be broadcast to and from media player software, enabling hobbyists and professionals to create Internet radio  networks.

Smart Email

An e-newsletter.

SMIL

Synchronized Multimedia Integration Language
A W3C recommended language for creating multimedia presentations.

SMS

Short Message Service
A service available on most digital phones and other mobile devices that permits the sending of short (text) messages between devices.

SMTP

Simple Mail Transfer Protocol
A standard communication protocol for sending e-mail messages between computers.

SOAP

An acronym that originally stood for Simple Object Access Protocol, uses xml to format and contain data and was popularized by OOP languages for exchanging objects via web services or RPC. SOAP messages typically contain three main elements soap:Envelope, soap:Header, and soap:Body.

Social Bookmarking

Similar to web browser bookmarks, social bookmarking stores individual pages online and allows you to 'tag' them. For people who like to frequently bookmark web pages, this can provide an easier way to organize the bookmarks.

Social Computing

Forms of web services where the value is created by the collective contributions of a user population.

Social Media

Any website or web service that utilizes a 'social' or 'Web 2.0' philosophy. This includes blogs, social networks, social news, wikis, etc.

Social Networking

The process of building online communities, often accomplished both through 'groups' and 'friends lists' that allow greater interaction on websites.

Social News

A subset of social bookmarking that concentrates on news articles and blog posts and utilizes a voting mechanism to rank the content.

Software-as-a-Service (SaaS)

Software that users purchase based on a subscription model (such as every quarter or every year).  In most cases, SaaS involves software that is delivered via the Internet (also known as hosted software). 
Leading analysts such as Gartner are predicting that within a few years over 25% of business applications will be delivered as a SaaS model vs. traditional licensing.

Solaris

Computer operating system from SUN.

Soundcard

A device that allows a computer to play high quality sound.

Spam

Spam is unsolicited e-mail on the Internet. From the sender's point-of-view, spam is a form of bulk mail, often sent to a list obtained from a spambot or to a list obtained by companies that specialize in creating e-mail distribution lists. To the receiver, it usually seems like junk e-mail.

Spider

A search engine spider is a program that crawls the Web, visiting Web pages to collect information to add to or update a search engine's index. The major search engines on the Web all have such a program, which is also known as a "crawler" or a "bot."

Spoofing

Addressing a web page or an e-mail with a false referrer. Like sending an e-mail from a false address.

Spotify™

Record stream capture music from Spotify™.

Spyware

Computer software hidden in a computer with the purpose of collecting information about the use of the computer.

SQL

Structured Query Language
An ANSI standard computer language for accessing and manipulating databases.

SQL Server

A database system from Microsoft. Mostly used on high traffic web sites running on the Windows platform.

SSE

Simple Sharing Extensions
is a specification that extends RSS from unidirectional to bidirectional information flows. SSE defines the minimum extensions necessary to enable loosely cooperating applications to use RSS as the basis for item sharing—that is, the bidirectional, asynchronous replication of new and changed items among two or more cross-subscribed feeds. SSE can also be used to extend other formats such as OPML. SSE introduces concepts such as per-item change history (to manage item versions and update conflicts) and tombstones (to propagate deletions, and un-deletions).

SSI

Server Side Include
A type of HTML comment inserted into a web page to instruct the web server to generate dynamic content. The most common use is to include standard header or footer for the page.

SSL

Secure Socket Layer
Software to secure and protect web site communication using encrypted transmission of data.

Static IP

An IP address that is the same each time connect to the Internet.

Storage

In a computer, storage is the place where data is held in an electromagnetic or optical form for access by a computer processor.

Streaming

A stream is an audio file delivered over a network and played in close to real time. It is not permanently stored on the playback device.

Streaming Format

The format used for files being streamed over the Internet.

SVG

Scalable Vector Graphics
A W3C recommended language for defining graphics in XML.

Syndicated Web Content

Making web feeds available from a site (usually via RSS) in order to provide other people an updated list of content from it.

Syndication

Refers to making online content available from a site or publishing tool in order to provide other people with a updates of the recently added content usually via feeds.