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29-letter words containing o, r, a, l, c, n

  • longitudinal redundancy check — (storage, communications)   (LRC, Block Redundancy Check) An error checking method that generates a longitudinal parity byte from a specified string or block of bytes on a longitudinal track. The longitudinal parity byte is created by placing individual bytes of a string in a two-dimensional array and performing a Vertical Redundancy Check vertically and horizontally on the array, creating an extra byte. This is an improvement over the VRC because it will catch two errors in the individual characters of the string, beyond the odd errors.
  • lotus development corporation — (company)   A software company who produced Lotus 1-2-3, the Symphony spreadsheet and Lotus Notes for the IBM PC. Disliked by the League for Programming Freedom on account of their lawsuits. Quarterly sales $224M, profits $10M (Aug 1994). Telephone: +1 (617) 225 1284.
  • man that corrupted hadleyburg — a short story (1900) by Mark Twain.
  • mark-sweep garbage collection — Each cell has a bit reserved for marking which is clear initially. During garbage collection all active cells are traced from the root and marked. Then all cells are examined. Unmarked cells are freed.
  • mecklenburg-western pomerania — a state in NE Germany. 8842 sq. mi. (22,900 sq. km). Capital: Schwerin.
  • microelectromechanical system — (hardware)   (MEMS) The integration of mechanical structures (moving parts) with microelectronics. MEMS devices are "custom" designed for a purpose which requires a mechanical action to be controlled by a computer. Applications include sensors, medical devices, process controls. See also nanotechnology.
  • modified frequency modulation — (storage)   (MFM, Modified FM, or sometimes "Multiple Frequency Modulation") A modification to the original frequency modulation scheme for encoding data on magnetic disks. MFM allows more than 1 symbol per flux transition (up to 3), giving greater density of data. It is used with a data rate of between 250-500 kbit/s on industry standard 3.5" and 5.25" low and high density diskettes, and up to 5 Mbit/s on ST-506 hard disks. Except for 1.44 MB floppy disks, this encoding is obsolete. Other data encoding schemes include GCR, FM, RLL. See also: PRML.
  • mordovian autonomous republic — an autonomous republic in the Russian Federation in Europe. 9843 sq. mi. (25,493 sq. km). Capital: Saransk.
  • multics relational data store — (database)   (MRDS) The first commercial relational database, implemented as part of Multics by Jim Weeldreyer and Oris Friesen of Honeywell Phoenix in about 1977. MRDS included a report writer called LINUS written by Jim Falksen.
  • multiprotocol label switching — (networking)   (MPLS) A packet switching protocol developed by the IETF. Initially developed to improve switching speed, other benefits are now seen as being more important. MPLS adds a 32-bit label to each packet to improve network efficiency and to enable routers to direct packets along predefined routes in accordance with the required quality of service. The label is added when the packet enters the MPLS network, and is based on an analysis of the packet header. The label contains information on the route along which the packet may travel, and the forwarding equivalence class (FEC) of the packet. Packets with the same FEC are routed through the network in the same way. Routers make forwarding decisions based purely on the contents of the label. This simplifies the work done by the router, leading to an increase in speed. At each router, the label is replaced with a new label, which tells the next router how to forward the packet. The label is removed when the packet leaves the MPLS network. Modern ASIC-based routers can look up routes fast enough to make the speed increase less important. However, MPLS still has some benefits. The use of FECs allows QoS levels to be guaranteed, and MPLS allows IP tunnels to be created through a network, so that VPNs can be implemented without encryption.
  • nuclear regulatory commission — an independent agency, created in 1975, that licenses and regulates the nonmilitary use of nuclear energy. Abbreviation: NRC.
  • object compatibility standard — (OCS) An 88open standard for compilers and linkers.
  • on-line analytical processing — (database)   (OLAP) A category of database software which provides an interface such that users can transform or limit raw data according to user-defined or pre-defined functions, and quickly and interactively examine the results in various dimensions of the data. OLAP primarily involves aggregating large amounts of diverse data. OLAP can involve millions of data items with complex relationships. Its objective is to analyze these relationships and look for patterns, trends, and exceptions. The term was originally coined by Dr. Codd in 1993 with 12 "rules". Since then, the OLAP Council, many vendors, and Dr. Codd himself have added new requirements and confusion. Richard Creeth and Nigel Pendse define OLAP as fast analysis of shared multidimensional information. Their definition requires the system to respond to users within about five seconds. It should support logical and statistical processing of results without the user having to program in a 4GL. It should implement all the security requirements for confidentiality and concurrent update locking. The system must provide a multidimensional conceptual view of the data, including full support for multiple hierarchies. Other aspects to consider include data duplication, RAM and disk space requirements, performance, and integration with data warehouses. Various bodies have attempted to come up with standards for OLAP, including The OLAP Council and the Analytical Solutions Forum (ASF), however, the Microsoft OLE DB for OLAP API is the most widely adopted and has become the de facto standard.
  • optical character recognition — the process or technology of reading data in printed form by a device (optical character reader) that scans and identifies characters. Abbreviation: OCR.
  • ordinary national certificate — a further education qualification in the United Kingdom, equivalent to two A Levels
  • professional graphics adapter — (graphics, specification)   (PGA) A computer video display standard produced by IBM for early CAD applications. It had a resolution of 640x400 pixels.
  • programmable logic controller — (hardware)   (PLC) A device used to automate monitoring and control of industrial plant. Can be used stand-alone or in conjunction with a SCADA or other system.
  • quantum-dot cellular automata — (electronics, computing)   (QCA) Quantum logic circuits created by orientating pairs of quantum cells so that their relative positions determine their affect on each other. This is functionally analogous but structurally different from how individual gates in integrated circuits are combined to create logical and memory circuitry. The advantages of quantum-dot cellular automata over conventional circuitry are extremely small size/high density, low power requirements, and potentially high processing speeds. Disadvantages (in 2000) are difficulty of fabrication and low yield. See also: quantum cell wire.
  • rapid application development — (programming)   (RAD) A loose term for any software life-cycle designed to give faster development and better results and to take maximum advantage of recent advances in development software. RAD is associated with a wide range of approaches to software development: from hacking away in a GUI builder with little in the way of analysis and design to complete methodologies expanding on an information engineering framework. Some of the current RAD techniques are: CASE tools, iterative life-cycles, prototyping, workshops, SWAT teams, timebox development, and Re-use of applications, templates and code.
  • receivables collection period — A receivables collection period is a measure of cash flow that is calculated by dividing average receivables by credit sales per day.
  • recommended dietary allowance — the amount of an essential nutrient, as a vitamin or mineral, that has been established by the Food and Nutrition Board of the National Academy of Sciences as adequate to meet the average daily nutritional needs of most healthy persons according to age group and sex. Abbreviation: RDA.
  • resource reservation protocol — (protocol)   (RSVP) A protocol that supports quality of service.
  • royal canadian mounted police — Canadian police on horseback
  • scanning tunneling microscope — a device that uses a moving needle and the tunnel effect to generate a maplike image of the atomic surface structure of matter, thereby achieving even greater magnification than the scanning electron microscope.
  • secure file transfer protocol — SSH File Transfer Protocol
  • serial line internet protocol — (communications, protocol)   (SLIP) Software allowing the Internet Protocol (IP), normally used on Ethernet, to be used over a serial line, e.g. an EIA-232 serial port connected to a modem. It is defined in RFC 1055. SLIP modifies a standard Internet datagram by appending a special SLIP END character to it, which allows datagrams to be distinguished as separate. SLIP requires a port configuration of 8 data bits, no parity, and EIA or hardware flow control. SLIP does not provide error detection, being reliant on other high-layer protocols for this. Over a particularly error-prone dial-up link therefore, SLIP on its own would not be satisfactory. A SLIP connection needs to have its IP address configuration set each time before it is established whereas Point-to-Point Protocol (PPP) can determine it automatically once it has started. See also SLiRP.
  • simple mail transfer protocol — (messaging)   (SMTP) A protocol defined in STD 10, RFC 821, used to transfer electronic mail between computers, usually over Ethernet. It is a server to server protocol, so other protocols are used to access the messages. The SMTP dialog usually happens in the background under the control of the message transfer agent, e.g. sendmail but it is possible to interact with an SMTP server using telnet to connect to the normal SMTP port, 25. E.g. telnet mhs-relay.ac.uk 25 You should normally start by identifying the local host: HELO wombat.doc.ic.ac.uk You can then issue commands to verify an address or expand an alias: VRFY [email protected] VRFY postmaster or expand a mailing list: EXPN c-help You can even send a message: MAIL From:<[email protected]> RCPT To:<[email protected]> DATA What is the point? . QUIT This is useful if you want to find out exactly what is happening to your message at a certain point. See also Post Office Protocol, RFC 822, sendmail.
  • single edge contact cartridge — (hardware)   (SEC, SECC) The cased daughterboard housing Intel's Pentium II, Pentium III, and Xeon microprocessors. A SECC fits into a Slot 1 or Slot 2 connector.
  • single edge processor package — (hardware)   (SEPP) The caseless daughterboard containing Intel's Celeron processor. A SEPP fits into a Slot 1 connector.
  • suppressed carrier modulation — an amplitude-modulated wave in which only the sidebands are transmitted, the carrier being removed
  • symbolic automatic integrator — (mathematics, tool)   (SAINT) A symbolic mathematics program written in Lisp by J. Slagle at MIT in 1961.
  • synchronous data link control — (communications)   (SDLC) An IBM protocol. A discipline conforming to subsets of the ADCCP of ANSI and the HDLC of the International Organization for Standardization. SDLC manages synchronous, code-transparent, bit-serial communication which can be duplex or half-duplex; switched or non-switched; point-to-point, multipoint, or loop. Compare Binary Synchronous Communication.
  • synchronous digital hierarchy — (communications, standard)   (SDH) An international digital telecommunications network hierarchy which standardises transmission around the bit rate of 51.84 megabits per second, which is also called STS-1. Multiples of this bit rate comprise higher bit rate streams. Thus STS-3 is 3 times STS-1, STS-12 is 12 times STS-1, and so on. STS-3 is the lowest bit rate expected to carry ATM traffic, and is also referred to as STM-1 (Synchronous Transport Module-Level 1). The SDH specifies how payload data is framed and transported synchronously across optical fibre transmission links without requiring all the links and nodes to have the same synchronized clock for data transmission and recovery (i.e. both the clock frequency and phase are allowed to have variations, or be plesiochronous). SDH offers several advantages over the current multiplexing technology, which is known as Plesiochronous Digital Hierarchy. Where PDH lacks built-in facilities for automatic management and routing, and locks users into proprietary methods, SDH can improve network reliability and performance, offers much greater flexibility and lower operating and maintenance costs, and provides for a faster provision of new services. Under SDH, incoming traffic is synchronized and enhanced with network management bits before being multiplexed into the STM-1 fixed rate frame. The fundamental clock frequency around which the SDH or SONET framing is done is 8 KHz or 125 microseconds. SONET (Synchronous Optical Network) is the American version of SDH.
  • take a person to the cleaners — to rob or defraud a person of all of his or her money
  • the royal shakespeare company — a British theatre company based mainly in Stratford-upon-Avon
  • the royal ulster constabulary — (formerly) the police force in Northern Ireland from 1922 to 2001, superseded by the Police Service of Northern Ireland
  • throw cold water on something — to be unenthusiastic about or discourage something
  • to invade sb's personal space — to come too close to somebody, so that they feel uncomfortable
  • to laugh someone out of court — If you laugh someone out of court, you say that their opinions or ideas are so ridiculous that they are not worth considering.
  • to lead someone a merry dance — If someone leads you a merry dance, they make you do things over a long period of time which cause you problems and do not benefit you in any way.
  • to make someone's flesh creep — If something makes your flesh creep or makes your flesh crawl, it makes you feel disgusted, shocked or frightened.
  • to pay cash on the barrelhead — to pay at the time of purchase
  • transmission control protocol — (networking, protocol)   (TCP) The most common transport layer protocol used on Ethernet and the Internet. It was developed by DARPA. TCP is the connection-oriented protocol built on top of Internet Protocol (IP) and is nearly always seen in the combination TCP/IP (TCP over IP). It adds reliable communication and flow-control and provides full-duplex, process-to-process connections. TCP is defined in STD 7 and RFC 793.
  • universal resource identifier — (web)   (URI, originally "UDI" in some WWW documents) The generic set of all names and addresses which are short strings which refer to objects (typically on the Internet). The most common kinds of URI are URLs and relative URLs. URIs are defined in RFC 1630.
  • variational graphics extended — (software)   (VGX) Software developed by SDRC for use in 3D CAD solid modelling.
  • visual basic for applications — (programming)   (VBA) Microsoft's common language for manipulating components of its Microsoft Office suite. It is used as the macro language for these applications and is the primary means of customising and extending them. A VBA program operates on objects representing the application and the entities it manipulates, e.g. a spreadsheet or a range of cells in Microsoft Excel.
  • wireless application protocol — (protocol, standard)   (WAP) An open international standard for applications that use wireless communication, e.g. Internet access from a mobile phone. The official body developing WAP is the WAP Forum.
  • workflow management coalition — (body)   (WfMc) A non-profit, international organisation of workflow vendors, users, and analysts committed to establishing standards for workflow terminology, interoperability, and connectivity. WfMC was founded in 1993 and now (1999) has over 130 members.
  • yet another compiler compiler — (tool, language)   (yacc) The LALR parser generator found on most Unix systems. Also, the language used to describe the syntax of another language to yacc (the program). Implementations: ayacc, YAY, perln-byacc, SASL-Yacc - "Yacc in SASL - An Exercise in Functional Programming", Simon Peyton-Jones, Software Prac & Exp 15:807-820 (1985). Mentions also a BCPL implementation. Yacc++ - 1990. An object-oriented rewrite of yacc, supports regular expressions, produces an LR1 grammar parser. Chris Clark, Compiler Resources Inc, +1 (508) 435-5016. MLYACC - Implementation and output in SML/NJ. ftp:research.att.com/dist/ml/75.tools.tar.Z. A version, by David Poole at Montana University has been retargeted to Turbo Pascal. See also Bison, yet another, Yet Another Yacc.
  • you can't hear yourself think — If you say that you can't hear yourself think, you are complaining and emphasizing that there is a lot of noise, and that it is disturbing you or preventing you from doing something.
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