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M
MAC
Media access controller. See also PHY.
Mbit
(Mb) Megabit. 1,048,576 bits.
MByte
(MB) Megabyte. One million bytes.
Mbps
Megabits per second.
MCU
Memory controller unit.
MHz
Megahertz. One million cycles per second.
MII
Media independent interface.
MUX
Multiplex, multiplexer. A multiplexer merges information from multiple
signals to a single channel.
N
node
An addressable point on a network.
NVRAM
Nonvolatile random access memory. Stores system variables used by the boot
PROM. Contains the system host ID number and Ethernet address. NVRAM
retains the data when the workstation is powered off.
O
OpenBoot PROM contains the PROM monitor program, a command interpreter
OpenBoot PROM
used for booting, resetting, low-level configuration, and simple test
procedures. OpenBoot software initially boots the system to a state in which
the system can further load an operating system.
OpenGL
OpenGL is an application programming interface (API) for developing
portable, interactive 2D and 3D graphics applications.
Glossary-5
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