- Industry: Consulting
- Number of terms: 1807
- Number of blossaries: 2
- Company Profile:
Gartner delivers technology research to global technology business leaders to make informed decisions on key initiatives.
An Internet security standard from Netscape Communications, used for its browser and server software.
Industry:Technology
Also known as HTTPS, this is an extension of Hypertext Transport Protocol (HTTP) that provides security services for transaction confidentiality, authenticity and integrity between HTTP servers and clients. For the purposes of Internet browsers, S-HTTP is a competitive alternative to the more widely used Secure Sockets Layer (SSL) standard. S-HTTP was designed for use in browser applications, so it cannot be used to secure non-browser-based Internet applications.
Industry:Technology
In this cryptography method (also known as symmetric-key cryptography), the single key needed to encrypt and decrypt messages is a shared secret between the communicating parties. The biggest problem with this method is that the secret key must be communicated through an external mechanism separate from the communication channel over which the encrypted text flows. In addition, secret-key systems do not support digital signatures. These limitations are addressed in public-key cryptography (see separate entry).
Industry:Technology
The symmetric key used in secret-key cryptography. It is a secret shared between communicating parties, but is not truly private. See secret-key cryptography, private key and public-key cryptography.
Industry:Technology
Previously owned or used mobile devices that are sold or given free to other users who typically obtain a new network connection. Secondhand devices sometimes are refurbished systematically before resale in other countries or passed on to other users in their original condition. Although most countries have a small secondhand market, it is a significant factor in price-sensitive developing markets such as China, where marginal subscribers are looking for the lowest-cost, entry-level device.
Industry:Technology
On a communications pathway, a terminal device that has been selected to operate under the control of another terminal device.
Industry:Technology
A low-speed channel established on a four-wire circuit over which diagnostic or control information is passed. User data is passed on the primary, high-speed channels of the circuit.
Industry:Technology
The second generation of wireless networks designed to improve on analog with digital circuit-switched solutions. The three main 2G technology standards are Global System for Mobile Communications (GSM), which is based on European Telecommunications Standards Institute (ETSI) standards, time division multiple access (TDMA) IS-136 and code division multiple access (CDMA). The Japanese personal digital cellular (PDC) standard was similar to IS-136. GSM and IS-136 are TDMA technologies. 2G services typically support data rates of 9.6 Kbps, 14.4 Kbps and up to 64 Kbps in certain IS-95B deployments.
Industry:Technology
Search-based data discovery tools enable users to develop and refine views and analyses of structured and unstructured data using search terms. Like visualization-based data discovery tools, they have three attributes: (1) a proprietary data structure to store and model data gathered from disparate sources, which minimizes reliance on predefined business intelligence (BI) metadata; (2) a built-in performance layer using RAM or indexing that lessens the need for aggregates, summaries and pre-calculations; and (3) an intuitive interface, enabling users to explore data without much training. However, as well as having a broader scope (visualization-driven data discovery tools focus exclusively on quantitative data) they differ at the user interface layer, with search-based data discovery tools using text search input and results to guide users to the information they need.
Industry:Technology
A large, searchable index of Web pages that is automatically updated by spiders or Web crawlers and housed on a central server connected to the Internet. Examples include Yahoo and AltaVista.
Industry:Technology
