214 Glossary
LVD — Low voltage differential.
m — Meter(s).
mA — Milliampere(s).
MAC address — Media Access Control address. Your system’s unique hardware
number on a network.
mAh — Milliampere-hour(s).
Mb — Megabit(s); 1,048,576 bits.
MB — Megabyte(s); 1,048,576 bytes. However, when referring to hard-drive capacity,
the term is often rounded to mean 1,000,000 bytes.
Mbps — Megabits per second.
MBps — Megabytes per second.
MBR — Master boot record.
memory address — A specific location, usually expressed as a hexadecimal number, in
the system’s RAM.
memory module — A small circuit board containing DRAM chips that connects to
the system board.
memory — An area in your system that stores basic system data. A system can contain
several different forms of memory, such as integrated memory (ROM and RAM) and
add-in memory modules (DIMMs).
MHz — Megahertz.
mirroring — A type of data redundancy in which a set of physical drives stores data
and one or more sets of additional drives stores duplicate copies of the data.
Mirroring functionality is provided by software. See also guarding, integrated
mirroring, striping, and RAID.
mm — Millimeter(s).