Compatibility Guide

Glossary 183
PKCS #7
Abbreviation for Public Key Cryptography Standard #7. PKCS #7 is an RSA Data
Security, Inc., standard for encapsulating signed data such as a certificate chain.
PKIS
Abbreviation for Novell Public Key Infrastructure Services.
PLCC
Abbreviation for plastic leaded chip carrier.
Plug and Play
An industry-standard specification that makes it easier to add hardware devices
to personal computers. Plug and Play provides automatic installation and
configuration, compatibility with existing hardware, and dynamic support of
mobile computing environments.
PME
Abbreviation for Power Management Event. A PME is a pin on a peripheral
component interconnect that allows a PCI device to assert a wake event.
POST
Acronym for power-on self-test. Before the operating system loads when you
turn on your system, the POST tests various system components such as RAM,
the disk drives, and the keyboard.
power supply
An electrical system that converts AC current from the wall outlet into the
DC currents required by the system circuitry. The power supply in a personal
computer typically generates multiple voltages.
power unit
A set of power supplies in a system chassis.
ppm
Abbreviation for pages per minute.
PPP
Abbreviation for Point-to-Point Protocol.