R

RTP (Real-Time Transfer Protocol)
A protocol that provides support for applications with real-time properties, including timing construction, loss detection, and security and content-identification.
RSS
RSS (Really Simple Syndication) is basically just a simple code like xml or html, that allows website owners to send out or syndicates a site's contents. RSS is usually associated with Blogs and Blogging because Blogs use RSS Feeds to syndicate their contents.
Real Time
At the same time, simultaneously. An event where two or more people communicate simultaneously, similar to the way people speak on a telephone at the same time. This is in contrast to time-shifting, where one person leaves a message and the other person responds later.
Rich Text
Email formatting that allows the viewer to read underlined, bold, italics, colored text, and different sizes and type styles. Also known as HTML email.


RSS?
Really Simple Syndication (RSS) is an XML-based format for content distribution. News, information, enterprise applications and weblogs (blogs) can all be published in RSS. When a new article is posted or a change is made to an application, RSS feeds can automatically notify the user. Text, images, audio (including podcasts) and video can be incorporated into RSS feeds.


RAID (Redundant Array of Independent Disks)
A standard for connecting multiple disks to the same server for higher security, speed and performance. Often used on web servers.

RDF (Resource Description Framework)
A framework for constructing languages for describing web resources.
Learn more about RDF in our RDF tutorial

Real Audio
A common multimedia audio format created by Real Networks.
Learn more about Real Audio in our Media tutorial

Real Video
A common multimedia video format created by Real Networks.
Learn more about Real Video in our Media tutorial

Redirect
In web terms: The action when a web page automatically forwards (redirects) the user to another web page.

RGB (Red Green Blue)
The combination of the three primary colors that can represent a full color spectrum.
Learn more about RGB in our HTML tutorial

Robot
See Web Robot.

Router
A hardware (or software) system that directs (routes) data transfer to different computers in a network.



Raw Logs

Raw access data updated in real-time that can be downloaded and used by any statistics program. Typically each line show the user's IP, date and time of the access, what kind of request was done, which document was requested, HTTP status code, bytes transferred, referrer, and user agent info. If a host doesn't have statistics, you'll need access to raw logs to identify who your site's visitors are. Analyzing raw logs can also provide more detailed look at site accesses than stats.

Reseller

Resellers are usually smaller companies that still try to build their customers base. They don't own the server with user accounts but can perform most administrative functions.

RJ-11

A standard connector that is used to connect to the telephone line.

RJ-45

A standard connector that is used to connect to the Ethernet network.

ROFL

Rolling On the Floor Laughing

Router

A network device (can be a dedicated computer) that is used to connect two or more networks together and route packets between them.

RSA

A public key cryptosystem developed by Ron Rivest, Adi Shamir, and Leonard Adleman. It can be used to encrypt session keys and to generate digital certificates.