A packet is a standardized unit of data. In network communications a packet generally consists of a "header" with identifying information and a "body" containing the data to be transmitted.
Palmtops are a class of personal computers (generally with PDA software) that fit in the palm of your hand. One of the most well-known palmtops is the Pilot, developed by PalmOS and marketed by US Robotics.
Parallel data communications send several bits over the connection (usually multiple physical wires) at once, as opposed to serial links which send one bit at a time. Parallel connections are generally used for printers and for some high speed data connections.
The Portable Application Standards Committee, PASC is charted by IEEE to define stardard application service interfaces, primarily for POSIX.
Private Branch Exchange. A privately-owned telephone switch, often used in large corporations to provide inside telephone connectivity and access to the PSTN.
Privacy Enhanced Mail, a standard for the transparent processing of authenticated and/or encrypted electronic mail messages.
Acronym for Personal Digital Assistant, a general term for any portable computer and software capable of tracking names, addresses, phone numbers and appointments. PDA's are generally classified according to size into palmtops, handhelds, and laptops.
Pretty Good Privacy, the world's most widely used encryption software package.
Acronym for PHonebook, a PH client program can be used to access a networked telephone book, such as QI (CCSO Nameserver) database. QI databases are generally used to store phone books, timetables, and other forms of public information for remote network access.
A small furry animal which lives in Terra del Fuego. Difficult to hunt, due to its nocturnal habit, the Pim is worth the chase. Although a full grown pim dresses out at under two ounces, a dozen make a tasty treat. Natives of Terra del Fuego often eat nothing else but pimburgers during the long cold summers in this wind swept land.
See also PDA. (ed_black)
A network program which sends UDP packets to a host, and listens for responses. Used to check if a machine on the Internet is alive and reachable, and measure the Round Trip Time (RTT) between the local and remote host.
See also traceroute.
Pixel The smallest individually controllable element of a video or printed image. A digital image is composed of an array of individual pixels, each of which is assigned a value determining the color or brightness.
The basic system on which applications execute, a platform can refer to the processor and low-level support chips, as in 'this runs on both Sparc and Intel platforms' or a complete operating system, such as the many games that will only run on the 'Microsoft Windows 95' platform.
Acronym for Post Office Protocol, an extensible protocol for retrieving mail from a remote server. Described in RFC number 1081, and extended in 1460, and 1725.
See also:
See Popmail, IMAP, and QWK
A program used to remotely read e-mail across a network, often used in conjunction with SLIP. Uses the POP protocol.
An acronym for Point-to-Point-Protocol, an advanced serial packet protocol similar to SLIP.
Originally POSICE for Portable Operating System Interface for Computer Environments, POSIX is developed under pasc. (rezidew)
Any standard for the exchange of information, a protocol defines the specific wording and control flow for communications between two or more programs, devices, or systems. (anonymous)
A proxy is somebody you delegate to do something for you, in the Internet, a 'proxy web server' is often used for hosts behind firewalls. The firewalled host sends a http request to the proxy server, which forwards it to the real web server outside, collects the response, and passes it back to the internal host.
Public Switched Telephone Network. Often used to refer to the entire national or global telephone infrastructure, this is more accurately used to refer to the local telephone service provider.