A mathematical curve that describes a smooth repetitive oscillation.

An antenna technology for wireless communications in which multiple antennas are used at the destination (receiver). The antennas are combined to minimize errors and optimize data speed.

A wireless communications system in which one antenna is used at the source (transmitter) and one antenna is used at the destination (receiver). SISO is the simplest antenna technology. 

As one of the three performance enhancements of MMX , SIMD lets one microinstruction operate at the same time on multiple data items. This is especially productive for applications in which visual images or audio files are processed. 

Single-page application is a web application that fits and loads on a single HTML page and dynamically updates the page as the user interacts with the web application. The goal of providing SPA is a rich and fluid user experience without constant reloads. SPA's use JavaScript, HTML5 and CSS to create a fluid and responsive layout.  

Single sign-on (SSO) is a property of access control of multiple related, but independent software systems. With this property a user logs in once and gains access to all systems without being prompted to log in again at each of them. This is typically accomplished using the Lightweight Directory Access Protocol (LDAP) and stored LDAP databases on servers. A simple version of single sign-on can be achieved using cookies but only if the sites are on the same domain.

An add-on to the Session Initiation Protocol (SIP) that some industry insiders predict will be the basis for a new Instant Messaging and Presence Protocol (IMPP). 

Apple's voice-recognition service for iOS devices. Siri responds to users' spoken questions by speaking back to them and presenting relevant information from certain apps, such as Web Search or Calendar. 

Sirius Satellite Radio is a satellite radio (SDARS) service operating in North America. Music streams on Sirius carry a wide variety of genres, broadcasting 24 hours daily, commercial-free, and uncensored. A subset of Sirius music channels is included as part of the Dish Network satellite television service. Sirius channels are identified by Arbitron with the label "SR" (e.g. "SR120", "SR9", "SR17"). Its business model is to provide pay-for-service radio, analogous to the business model for premium cable television.

Sitecore is a customer experience management company that provides web content management and multichannel marketing automation software.

Telerik Sitefinity is a content management and customer analytics platform developed by Telerik. Telerik is a leading vendor of enterprise software products. Using Sitefiniting you can develop web applications that are compatile across multiple devices and at the same time can be integrated with analytics and be integrated with multiple platforms and controlled centrally from one system.

A sitemap is a list of pages available on a webiste that is accessible to all the users. There are two types of sitemaps: XML sitemap and HTML sitemap. An XML sitemap is structured format of the list of all web pages, made availble for web crawlers and not visible to the user. An HTML sitemap is structured format of the list of web pages made available fo users to browse the website.

Six Sigma is a set of techniques and tools for process improvement. It was developed by Motorola in 1986. It seeks improvement in the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in manufacturing and business processes.

Green Belts are the employees who take up Six Sigma implementation along with their other job responsibilities, operating under the guidance of Black Belts.

SketchUp (formerly called as Google Sketchup) is a 3D modeling computer program for developing graphical models across industries such as architectural, interior design, civil and mechanical engineering, film, and video game design.

A Cisco proprietary standard for terminal control for use with VoIP. The SCCP was originally developed by Selsius Corporation. The term "skinny" reflects that SCCP is a simple and lightweight protocol requiring little computer processing.