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QUBE
G LOSSARY
MAC address
Media Access Control address. A unique identifier
attached to networking equipment.
Mb it
Measurement used for RAM devices. Example: a 4
Mbit device will contain 4 megabits of data.
MDC
Management Data Clock
MDIO
Management Data Input/Output
MII
Media Independent Interface
Monitor Name
Unique name entered into the monitor, identifying
it to all other monitors on the network.
Monitor ID
Unique identification entered into the monitor,
allowing an Ethernet address to be assigned.
NiMH
Nickel metal hydride battery; a type of
rechargeable battery
Node
A device that is connected as part of a computer
network
NTSC
National Television Standard used for U.S.
television video formats.
NVRAM
Non-Volatile RAM
OEM
Original equipment manufacturer
OTPROM
One Time Programmable Read Only Memory
device
PAL
International television video format
Packets
The units of information used in computer
networks that use packet switching
PCB or PCBA
Printed Circuit Board or PCB Assembly
PC Card
A card designed to be inserted into devices to
enable extra functions
PCI
Peripheral Component Interconnect
PCMCIA
Personal Computer Memory Card International
Association. Refers to the type of type I card that
adds ROM or RAM and can be exchanged without
rebooting the system.
PEM
Privacy Enhanced Mail format. This is a Base 64
encoded text version of the DER format that is
used for certificate files.
PFAIL
Power Failure notification line used to notify the
CPU of an imminent AC power failure.
PIM
Protocol Interdependent Multicast. Used to route
multicast PKIs on the network. Contains two
modes: sparse and dense.
PIXEL
Smallest unit displayed on a CRT. One PIXEL
equals a single dot on the display.
PHY
Physical layer
PI
Patient Identifier
PKI
Public Key Instrastructure. In cryptography, a PKI
is an arrangement that binds public keys with
respective user identities by means of a certificate
authority (CA). The user identity must be unique
for each CA. The binding is established through
the registration and issuance process, which,
depending on the level of assurance the binding
has, may be carried out by software at a CA, or
under human supervision. The PKI role that assures
this binding is called the Registration Authority
(RA) . For each user, the user identity, the public
key, their binding, validity conditions, and other
attributes are made unforgettable in public key
certificates issued by the CA.
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