Dell 530 manual Raid, Ram, Rdram, Rimm, Rom

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•The client computer can be remotely shut down and restarted.

•Since PXE is an industry standard, new computers can easily be added to the network.

RAID

Redundant Array of Independent Disks. A system of two or more drives working together for performance and fault tolerance. RAID drives are typically used on servers and high-endPCs.

There are a number of different RAID levels. The three most common are 0, 3, and 5:

•Level 0: Provides data striping but no redundancy. This improves performance but does not provide fault tolerance.

•Level 3: Same as Level 0, but also reserves one dedicated drive for error correction data, providing good performance and some level of fault tolerance.

•Level 5: Provides data striping at the byte level and also stripe error correction information. This results in excellent performance and good fault tolerance.

RAM

Random-access memory. The primary temporary storage area for program instructions and data. RAM is stored in chips on small circuit boards called SIMMs, DIMMs, or RIMMs, that attach to the system board. RAM, unlike ROM, is volatile, which means that, when you turn off your computer, any information stored in RAM is lost.

Rambus

Rambus is a memory technology that is designed to work with existing system board standards as an alternative to DRAM. See also RIMM, RDRAM, and

DRDRAM.

RDRAM

Rambus dynamic random-access memory (DRAM). A memory subsystem that can optimally transfer up to

1.6billion bytes of data per second. The subsystem consists of RAM, the RAM controller, and the bus

connecting RAM to the microprocessor and other devices in the computer. See also DRDRAM.

Remote Wake Up

A standard of WfM that provides the ability either to remotely wake a computer from a low-power sleep state or to remotely start a computer that is turned off but connected to a power source. Remote Wake Up, typically used to conserve power in large network organizations and to remotely perform maintenance/configuration operations, must be supported by an ACPI-compatible computer. Additionally, to start by a network connection, the network adapter must support WOL. To start by a telephone connection, the modem must support WOR.

RIMM

Rambus in-line memory module. A slim circuit board containing RDRAM chips. RIMMs are plugged into sockets on the computer's system board to add memory to the computer. They typically must be installed in matched pairs, meaning two sockets forming a pair must contain RIMMs of identical capacity, number of RDRAM chips, and speed. See also SIMM and DIMM.

RJ45

A form of connector resembling a standard telephone jack that is typically used to connect Ethernet and Token Ring network adapters and cables. Unlike a telephone jack, an RJ45 connector has eight wires instead of two, four, or six.

ROM

Read-only memory. Memory that stores data and programs that cannot be deleted or written to by the computer. ROM, unlike RAM, retains its contents even after you turn off your computer. Some programs essential to the operation of your computer reside in ROM.

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