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Word Description
packet A packet is a self-contained bundle of data sent over a packet switching network. Packets are typically less than 1500 bytes in size. Longer files are broken into multiple packets for transmission and reassembled at the other end. A packet includes a header with to and from addresses, relation to other packets (sequencing), and error checking information. On the Internet, datagram is a synonym for packet.
PDF Adobe's Portable Document Format. It is often used as a format which allows much more complete, controlled layout of a page and its graphics and text than conventional HTML does. It requires a browser plug-in to see a web page in PDF format. Files will usually have a .pdf extension.
Perl Practical Extraction and Reporting Language is an open source server side programming language extensively used for web scripts and to process data passed via the Common Gateway Interface from HTML forms etc. Perl scripts are not embedded within HTML pages and do not download to the web browser but reside on the server.
PING Packet InterNet Groper. An Internet utility used to check the connection with another site. It repeatedly bounces a signal off the remote site and shows you how long it took to complete the round trip each time. If you get no returns at all, the site is either down or unreachable. If only a portion of the signals are returned, it indicates some trouble with the connection that will slow down performance. You can run PING software on your own system with a PPP or net account, or you can use it as a command from Delphi's NavNet textside Utilities menu and from most shell accounts.
pixel One dot on a computer screen. Todays least expensive monitors typically are 640 pixels wide and 480 pixels high. Larger and more expensive monitors range up to 1600 x 1200 pixels and special purpose monitors may go much higher than that.
POP Post Office Protocol. A protocol for client-server e-mail systems. If you are using software like Eudora or Pegasus or the mail clients in Netscape or MSIE, your address to collect mail often will begin with pop. For example, Delphi e-mail accounts use an address of pop.delphiforums.com to collect mail.
protocol A standard for the exchange of information. Different computers and operating systems and software are able to communicate with each other on the Internet, because of the adoption of protocols.
Python Python is a popular interpreted, interactive, object-oriented programming language similar to Perl. Python is known for its versatility and very clear syntax.