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Acronyms and Abbreviations
Zeus Ultra DMA Solid State Drives 35
R
RISC (Reduced Instruction Set Computer) A
computer architecture that reduces chip complexity
by using simpler instructions. RISC compilers have
to generate software routines to perform complex
instructions that were previously done in hardware
by CISC computers. In RISC, the microcode layer
and associated overhead is eliminated.
S
SLC Single-Level Cell A flash memory technology
that stores one bit of data per memory cell;
supporting only two states: erased (1) or
programmed (0).
SMART (Self-Monitoring Analysis and Reporting
Technology) An “early warning system” for
anticipating pending drive problems. The drive’s
integrated controller works with various sensors to
monitor several aspects of the drive's performance.
Using this status information, SMART determines if
the drive is behaving normally or not, and then
makes the information available to software that
probes the drive.
SSD (Solid State Disk) Disk drive that uses memory
chips instead of rotating platters for data storage.
Used in battery-powered handheld devices as well
as desktop computers and servers, solid state disks
(SSDs) are faster than regular disks because there is
zero latency (there is no read/write head to move).
They are also more rugged than hard disks and offer
greater protection in hostile environments.
T
True-IDE Flash memory devices (such as CF cards)
have a pin that when connected to the proper voltage
at power-up selects the “True-IDE” mode of
operation instead of the “PC-CARD-ATA” mode of
operation. This is the mode used in the interface.
U
Ultra ATA An enhanced version of the IDE interface
that transfers data at 33, 66 or 100 Mbytes/sec.
These enhancements are also called “Ultra DMA,”
“UDMA,” “ATA-33,” “ATA-66,” “ATA-100,” “DMA-33,”
“DMA-66” and “DMA-100.”
Ultra DMA (see Ultra ATA)