Rambus, Rdram, Pe of – Dell OptiPlex GX240 User Manual
Page 276: Chip, Pxes, And all
279
PXE
Pre-boot eXecution Environment. A standard of
that allows networked
computers that do not have an
to be configured and started remotely.
PXE benefits include:
•
The client computer does not necessarily need its own OS or even a hard drive.
•
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-end
.
There are a number of different RAID levels. The three most common are 0,
3, and 5:
•
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
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
on small circuit boards called
, or
, that attach to the system board. RAM, unlike
, 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
, and
RDRAM
dynamic random-access memory (
). A memory subsystem that
can optimally transfer up to 1.6 billion
subsystem consists of
, the RAM controller, and the
connecting
and other devices in the computer. See also