22-letter words containing p, e, r, l, c
- universal product code — a bar code that indicates price, product classification, etc., and can be read electronically, as at checkout counters in supermarkets. Abbreviation: UPC.
- unprofessional conduct — activity that is contrary to the accepted code of conduct of a profession
- upright vacuum cleaner — a vacuum cleaner that is tall rather than wide
- user datagram protocol — (protocol) (UDP) Internet standard network layer, transport layer and session layer protocols which provide simple but unreliable datagram services. UDP is defined in STD 6, RFC 768. It adds a checksum and additional process-to-process addressing information [to what?]. UDP is a connectionless protocol which, like TCP, is layered on top of IP. UDP neither guarantees delivery nor does it require a connection. As a result it is lightweight and efficient, but all error processing and retransmission must be taken care of by the application program.
- valencia simple tasker — (operating system) (VSTa) A small microkernel based Unix-like operating system, taking ideas from QNX and Plan 9, available under GPL.
- verification principle — (in the philosophy of the logical positivists) the doctrine that nontautologous statements are meaningful only if it is in principle possible to establish empirically whether they are true or false
- white australia policy — an unofficial term for an immigration policy designed to restrict the entry of non-White people into Australia