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Glossary Terms: R
- RAM
- Random Access Memory. A set of computer chips that provide the workspace on a computer. The more RAM a computer has, the bigger files it can load and manage — and the more programs it can keep open at one time.
- RAM cartridge
- A cartridge that can be plugged into a laser printer to add more RAM. The more RAM a laser printer has, the faster it can print documents.
- RDRAM
- Rambus Dynamic Random Access Memory. A type of computer memory (RAM) that makes a sizable speed improvement on SDRAM and DDR SDRAM memory systems. It transfers data at 800MHz and uses a RIMM board construction. It is installed in some Pentium 4 (and newer) computers.
- Recording jack
- A jack that allows you to plug in a device to capture incoming messages or to record conversations. Can be used as a tool to improve customer service or sales calls.
- Reflective
- An overhead projector that has its light source in the projector head, instead of beneath the stage where the transparency is placed. Reflective projectors are more portable than transmissive projectors and are recommended for travel.
- Regular-year format
- 12–month calendar that runs from January to December.
- Reinforcements
- Small, O–shaped adhesives that fortify holes punched in paper to help prevent tearing. Generally used with three–ring binders.
- Remote access/operation
- Lets a user access an individual mailbox from a remote location. Usually requires password verification.
- Remote assistance
- Provides you with the ability to invite a trusted friend or support professional who also runs Windows XP to be your remote assistant. Through an Internet connection, your assistant can chat with you, observe your working screen, and, with your permission, remotely control your computer.
- Remote desktop
- Remotely access your Windows XP Professional PC from another Windows PC so you can work with all of your data and applications while away from your office.
- Remote installation service
- (RIS) Support for remote operating system installations where desktops can be installed across the network.
- Remotely access help
- Provides a mechanism to easily view server Help content from a desktop computer.
- Resolution (digital camera)
- Defines the quality of images produced by a digital camera. Measured in megapixels, or one–million pixels or distinct color dots. A digital camera's resolution is equal to the number of horizontal pixels multiplied by the number of vertical pixels. A 2–megapixel camera, for instance, could depict 1,000 by 2,000 pixels.
- Resolution (monitors)
- Describes the sharpness and quality of images on a monitor, measured in horizontal and vertical pixels. A resolution of 1000 x 800, for instance, means there are 1000 horizontal and 800 vertical pixels per line, for a total of 800,000 pixels on the screen.
- Resolution (scanners)
- Measures the quality of a scanned reproduction by the amount of pixels assigned to a document or image. Scanners typically start at 300–dpi, or distinct dots per inch. Often, ratings will be listed as 300 x 600–dpi. The first number represents the resolution of the imaging system; the second describes the resolution of the scanning head. The first number more accurately describes the resolution. For this reason, many scanner models omit the second number entirely.
- Return
- A desk extension that attaches to either the right or left side of the desk at a perpendicular angle. Expands the work surface and provides additional storage space.
- Reverse function
- Reduces jams. If material gets caught while being fed through the shredder, the reverse function can help clear the obstruction.
- RIMM
- Rambus In–line Memory Module. A type of RAM module used exclusively by RDRAM memory cards. A RIMM is similar in construction to a DIMM, but it uses a slightly different pin setting to connect to a compatible computer's motherobard.
- Rivets
- Pins found on the spine that hold a binder together.
- RJ 45 cable
- An Ethernet cable with an eight–pin serial connector. Each computer in an Ethernet network must be connected to one another by either an RJ 45 or a Category 5 cable.
- Roaming user accounts
- Access to all your documents and settings no matter where you log on.
- Rollerball ink
- Filled with water–based ink, which flows very easily and smoothly. Water–based ink is more likely to smudge as it is not as water–resistant as oil–based ink.
- Room monitor
- Works with either multi–phone systems or cordless phones. Enables you to listen to what is happening in a room from another location. This feature can be used as a security measure or to monitor focus groups.
- Router
- A router transfers and sorts data and works to find the best route for data through a network. It can increase the speed and overall performance of a network. A cable/DSL router is required if you want to wirelessly network three or more computers and use always–on Internet access.