PAD
Short for packet assembler/disassembler PAD is a device (hardware or software) used in packet switching to enable data terminal equipment (DTE) not equipped for packet switching to access a packet-switched network. PAD is a term most often associated with an X.25 network where the PAD breaks the data stream into individual packets and formats the packet headers for asynchronous transmission.
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- PAL
(1) Short for Phase Alternating Line, the dominant television standard in Europe. The United States uses a different standard, NTSC. Whereas NTSC delivers 525 lines of resolution at 60 half-frames per second, PAL delivers 625 lines at 50 half-frames per second. Many video adapters that enable computer monitors to be used as television screens support […]
- PAN
(1) In all capitals, PAN is short for Personal Area Network. Based on the electric-field transmission medium, is an IBM technology that allows individuals to exchange data with a simple touch or grasp, such as a handshake. A PAN user is equipped with a receiver and a transmitter, which constantly sends infinitesimal data-carrying currents — […]
- PAP
Short for Password Authentication Protocol, the most basic form of authentication, in which a user’s name and password are transmitted over a network and compared to a table of name-password pairs. Typically, the passwords stored in the table are encrypted. The Basic Authentication feature built into the HTTP protocol uses PAP. The main weakness of […]
- PASV
The data transfer process (DTP) for FTP establishes and manages the data connection. The DTP can be passive or active. Passive, or PASV, is a command that requests that the server “listen” on a data port (which is not its default data port) and to wait for a connection rather than initiate one upon receipt […]
- Port Address Translation (PAT)
Short for port address translation, a type of network address translation. During PAT, each computer on LAN is translated to the same IP address, but with a different port number assignment. PAT is also referred to as overloading, port-level multiplexed NAT or single address NAT.