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28-letter words containing a, c, e, p, t, n

  • online public access catalog — (library)   (OPAC) A computerised system to catalogue and organise materials in a library (the kind that contains books). OPACs have replaced card-based catalogues in many libraries. An OPAC is available to library users (public access).
  • open document management api — (text, standard)   An open standard allowing desktop applications to interface with document management systems.
  • osborne computer corporation — (company)   The unsucessful computer manufacturer founded by Adam Osborne that produced one of the first laptop computers, the Osborne 1.
  • packet in plastic grid array — (integrated circuit)   (PPGA) The package used for Intel's Celeron Socket 370 CPU.
  • paper feed control character — (PFCC) An obscure mechanism used in Fortran run-time systems whereby the first character of a line of output to a line-printer caused various actions after the line was printed:
  • paradox application language — (PAL) The programming language for Paradox, Borland's relational database.
  • partial equivalence relation — (PER) A relation R on a set S where R is symmetric (x R y => y R x) and transitive (x R y R z => x R z) and where there may exist elements in S for which the relation is not defined. A PER is an equivalence relation on the subset for which it is defined, i.e. it is also reflexive (x R x).
  • permanent virtual connection — Permanent Virtual Circuit
  • persistent organic pollutant — a toxin resulting from a manufacturing process, which remains in the environment for many years
  • personal liability insurance — Personal liability insurance protects the insured if they are sued for claims that are covered by the insurance policy.
  • phenylmethylcarbinyl acetate — methylphenylcarbinyl acetate.
  • plug compatible manufacturer — (company)   (PCM) A manufacturer of equipment that some other manufacturer's system can identify and work with. The PCM's device replaces the original manufacturer's. Most PCMs competed with IBM. PCM devices normally offer a cost-performance benefit over the original device. For example, several PCM versions of the Direct-Access Storage Device IBM 3350 offered twice the storage and improved data access (dual port). Plug compatible devices include replacement CPUs, such as the Hitachi 7/90 series (which could be substituted for IBM 3090 series processors), I/O subsystems, and dumb terminals like the IBM 3270.
  • principle of complementarity — complementarity principle.
  • probability density function — a function of a continuous variable whose integral over a region gives the probability that a random variable falls within the region.
  • put one's cards on the table — a usually rectangular piece of stiff paper, thin pasteboard, or plastic for various uses, as to write information on or printed as a means of identifying the holder: a 3″ × 5″ file card; a membership card.
  • quaternary ammonium compound — any of a class of salts derived from ammonium in which the nitrogen atom is attached to four organic groups, as in benzalkonium chloride; the salts are cationic surface-active compounds used as antiseptics and disinfectants.
  • quick mail queueing protocol — (communications)   (QMQP) A protocol that provides a central e-mail queue for a cluster of hosts. QMOP is supposed to provide fast transfers of messages with many recipients as it can batch them up as a single transaction. It listens on port 628.
  • quick mail transfer protocol — (communications)   (QMTP) An SMTP replacement that works better over high latency links as it doesn't require as much interaction as SMTP. QMTP listens on port 209 and is used by qmail.
  • raise specification language — (language)   (RSL) (RAISE = Rigorous Approach to Industrial Software Engineering). A wide-spectrum specification and design language developed by ESPRIT Project 315 at CRI A/S, Denmark. Systems may be modular, concurrent and nondeterministic. Specifications may be applicative or imperative, explicit or implicit, abstract or concrete.
  • real time streaming protocol — (multimedia, networking, protocol)   (RTSP) An application layer protocol for controlling delivery of a stream of real-time multimedia content. RTSP allows users to start playing from a certain position. It does not actually deliver the data, but works alongside existing delivery channels such as UDP, TCP, or IP multicast. RTSP was developed by RealNetworks, Netscape Communications, and Columbia University, and is described in RFC 2326, April 1998. RTSP is an IETF proposed standard.
  • real-time transport protocol — (protocol)   (RTP) An Internet protocol for transmitting real-time data such as audio and video. RTP itself does not guarantee real-time delivery of data, but it does provide mechanisms for the sending and receiving applications to support streaming data. Typically, RTP runs on top of the UDP protocol, although the specification is general enough to support other transport protocols. RTP has received wide industry support. Netscape intends to base its LiveMedia technology on RTP, and Microsoft claims that its NetMeeting product supports RTP.
  • regular expression converter — CONVERT
  • rocky mountain spotted fever — an infectious disease characterized by high fever, pains in joints, bones, and muscles, and a cutaneous eruption, caused by rickettsii and transmitted by ticks: first reported in the Rocky Mountain area, but now more widely distributed.
  • scanning electron microscope — a device in which the specimen is examined point by point directly in a moving electron beam, and electrons reflected by the specimen are used to form a magnified, three-dimensional image on a television screen. Abbreviation: SEM.
  • semiconservative replication — replication.
  • service advertising protocol — (networking)   (SAP) A Novell NetWare protocol. SAP follows the spirit of the Xerox Clearinghouse protocol, it permits file, print, and gateway servers to advertise their services and addresses.
  • shared-appreciation mortgage — a type of mortgage that carries a smaller down payment or lower interest rate than usual in return for the lender's sharing in the appreciation of the property at some future date, as at the time of its sale. Abbreviation: SAM.
  • smooth endoplasmic reticulum — a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.
  • software productivity centre — (body)   (SPC) A non-profit organisation based in Vancouver, BC, Canada with the mandate to assist software developers to improve their software engineering process.
  • special power of appointment — authority to appoint persons from a particular class to take an estate or interest in property
  • spectral luminous efficiency — a measure of the efficiency of radiation of a given wavelength in producing a visual sensation. It is equal to the ratio of the radiant flux at a standard wavelength to that at the given wavelength when the standard wavelength is chosen so that the maximum value of this ratio is unity
  • standard operating procedure — a set of fixed instructions or steps for carrying out usually routine operations. Abbreviation: SOP.
  • supplemental security income — income provided by the U.S. government to needy aged, blind, and disabled persons. Abbreviation: SSI.
  • tannu tuva people's republic — former name of Tuva Autonomous Republic.
  • television interface adaptor — (hardware, graphics)   (TIA) The graphics chip in the Atari 2600, also used as a sound chip for some arcade game.
  • text reckoning and compiling — (language)   (TRAC) An interactive macro generator language for string manipulation by Calvin N. Mooers and Peter Deutsch of Sun Microsystems. TAC derived ideas from Macro SAP. There are versions for PDP-1, PDP-8, PDP-10 and PDP-11. See also MINT, SAM76. E-mail: Preston Briggs <[email protected]>.
  • the obscene publications act — a group of obscenity laws that determines what can be published in Britain
  • tissue plasminogen activator — an anticlotting enzyme, naturally occurring in small amounts in the blood.
  • tower technology corporation — A company, established in 1992 by the merger of two OOT companies, with the intention of supplying high performance Eiffel compilation systems. Tower provides development tools, reusable class libraries, and services supporting large scale system development. E-mail: <[email protected]> (orders and inquiries), <[email protected]> (The Eiffel Outlook Journal). Telephone: +1 (512) 452 9455 (8:30 to 5:30 CST business days). Fax: +1 (512) 452 1721. Sales +1 (800) 285-5124 (Free, USA and Canada only). Address: Tower Technology, 1501 W. Koenig Lane, Austin, TX 78756, USA.
  • united states postal service — an independent federal agency created in 1971 to replace the Post Office Department as the division of the federal government responsible for postal services. Abbreviation: USPS.
  • wake up and smell the coffee — to face up to reality, especially in an unpleasant situation
  • work projects administration — WPA.
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