SMS Definition Stands for “Short Message Service.” SMS is used to send text messages to mobile phones. The messages can typically be up to 160 characters in length, though some services use 5-bit mode, which supports 224 characters. SMS was originally created for phones that use GSM (Global System for Mobile) communication, but now all ..
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Search Engine Definition Google, Excite, Lycos, AltaVista, Infoseek, and Yahoo are all search engines. They index millions of sites on the Web, so that Web surfers like you and me can easily find Web sites with the information we want. By creating indexes, or large databases of Web sites (based on titles, keywords, and the ..
Algorithm Definition An algorithm is a set of instructions designed to perform a specific task. This can be a simple process, such as multiplying two numbers, or a complex operation, such as playing a compressed video file. Search engines use proprietary algorithms to display the most relevant results from their search index for specific queries. In computer programming, algorithms are ..
App Definition App is short for “application,” which is the same thing as a software program. While an app may refer to a program for any hardware platform, it is most often used to describe programs for mobile devices, such as smartphones and tablets. The term “app” was popularized by Apple when the company created the “App Store” in 2008, a year after ..
Reciprocal Link Definition A reciprocal link is a mutual link between two websites. For example, if website A links to website B, then website B can add a reciprocal link back to website A. The result of a reciprocal link is two websites that link to each each other. Reciprocal links are typically created for one of two ..
Web 2.0 Definition Web 2.0 is a term that was introduced in 2004 and refers to the second generation of the World Wide Web. The term “2.0” comes from the software industry, where new versions of software programs are labeled with an incremental version number. Like software, the new generation of the Web includes new features ..
Usenet Definition Usenet is collection of online discussions that are organized into newsgroups. Users may create their own discussion topics or contribute to existing threads within a topic. Some newsgroups provide forums for questions and answers, while others are designed primarily for file sharing. Usenet started in 1980 as a medium for discussing topics online, similar to a ..
Client-Server Model Definition The client-server model describes how a server provides resources and services to one or more clients. Examples of servers include web servers, mail servers, and file servers. Each of these servers provide resources to client devices, such as desktop computers, laptops, tablets, and smartphones. Most servers have a one-to-many relationship with clients, meaning a single server can provide resources to multiple clients ..
ICMP Definition Stands for “Internet Control Message Protocol.” When information is transferred over the Internet, computer systems send and receive data using the TCP/IP protocol. If there is a problem with the connection, error and status messages regarding the connection are sent using ICMP, which is part of the Internet protocol. When one computer connects to another ..
MMS Definition Stands for “Multimedia Messaging Service.” MMS is mobile phone service that allows users to send multimedia messages to each other. This includes images, videos, and sound files. MMS is an extension of SMS, which is used to send and receive text messages. Like text messages, multimedia messages are first transmitted to a central server maintained by the cellular ..
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