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OS/2
A family of multitasking operating systems developed by IBM for
Intel x86-based computers. OS/2 provides a graphic user
interface similar to Windows, as well as a command line interface
similar to DOS. Add-ons to OS/2 enable it to run DOS and
Windows applications.
P
Paper feed
Refers to guiding a sheet of paper into the machine’s paper path.
Paper feeder
The device in the machine that feeds recording media into the
machine for printing copied or sent documents.
PASV mode
Passive FTP mode. An alternative mode for initiating FTP
connections. In this mode, data transfer is initiated by the FTP
client, rather than the FTP server. As corporate firewalls generally
reject external data requests from FTP servers, the PASV mode
may allow FTP to be used with NAT (Network Address
Translation) and with clients behind firewalls, depending on the
environment. The PASV mode also ensures that all data flow
requests come from inside the network where the client is
located.
Pause
A timing entry required for registering certain long distance
numbers and for dialing out through some telephone systems or
switchboards. Pressing [Pause] enters a pause between digits of
a telephone number.
Portable Document Format. The page description language used
in Adobe Systems’ Acrobat document exchange system, which is
restricted neither by device nor resolution. PDF displays
documents in a way that is independent of the original application
software, hardware, and operating system used to create those
documents. A PDF document can contain any combination of
text, graphics, and images.
PHOTO
The document setting you use for sending or copying documents
with intermediate tones, such as photographs.
Protocol
A set of rules that govern the transmission of data across a
network. Examples of protocols are FTP, DHCP, BOOTP, RARP,
and TCP/IP.
Proxy server
A server that provides a cache of files available on remote servers
that are slow or expensive to access. The term “proxy server”
normally refers to a World Wide Web server that, on receiving a
URL, tries to supply the requested file from its cache. If it cannot
locate the file there, the proxy server would bring it from the
remote server and also save a copy in its cache so that the next
request can be obtained locally.
Pulse
See Rotary pulse.