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P
page
A type of message transmission in which a message is sent or
received via modem to a paging device from a computer (with paging
communications software) or telephone.
parallel interface
Interface that communicates eight bits at a time.
parallel printer
A printer with a parallel interface.
parameter
A characteristic of a device or system determined by a command or
setting whose purpose is to define or limit the characteristic.
password
A string of characters that the user must enter before the system
allows access or system privileges.
PCI
Peripheral Component Interface/Interconnect. A self-configuring
personal computer local bus designed by Intel. Most modern PCs
include a PCI bus in addition to a more general ISA expansion bus.
PCI is a 32-bit bus, but supports a 64-bit extension for new
processors, such as the Pentium II. It can run at clock speeds of 33 or
66 MHz. At 32 bits and 33 MHz, it yields a throughput rate of 133
megabits per second. 64-bit implementations running at 66 MHz
provide 524 Mbps. See ISA.
peripheral
Input or output device not under direct computer control. A printer is
a peripheral device.
pixels
Picture elements. Tiny dots that make up a screen image. A pixel is
the smallest spot on the screen that a computer can address.
16 Glossary
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