25-letter words containing a, c, t, i, v, e
- a voice in the wilderness — a person, group, etc, making a suggestion or plea that is ignored
- advance information sheet — a document giving details about a book that is to be published in the near future
- advanced intelligent tape — (storage) (AIT) A form of magnetic tape and drive using AME developed by Sony for storing large amounts of data. An AIT can store over 50 gigabytes and transfer data at six megabytes/second (in February 1999). AIT features high speed file access, long head and media life, the ALDC compression algorithm, and a MIC chip.
- american standard version — a revised version of the Authorized (King James) Version of the Bible, published by a committee of American scholars in 1901
- antixerophthalmic vitamin — vitamin A.
- at the top of one's voice — If you say something at the top of your voice, you say it very loudly.
- automatic vending machine — a machine that automatically dispenses goods, such as cigarettes, when money is inserted
- case integration services — (standard, programming) (CIS) A committee formed to discuss CASE tool integration standards related to ATIS.
- ccitt high-level language — (language) (CHILL) A real-time language widely used in telecommunications. CHILL was developed in the 1970s and improved in 1984, 1988, 1992, and 1996. It is used in several countries including Germany, Norway, Brasil, and South Korea.
- chief of naval operations — the highest officer in the U.S. Navy and a member of the Joint Chiefs of Staff.
- constant angular velocity — (storage) (CAV) One of the two schemes for controlling the rate of rotation of the disk in a disk drive. Constant angular velocity keeps the rate of rotation constant. This means that the linear velocity of the disk under the head is larger when reading or writing the outer tracks. This in turn implies either a variation in the data rate to and from the heads or the bits per unit length along the track. The alternative, constant linear velocity, requires the rate of rotation of the disk to accelerate and decelerate according to the radial postion of the heads, increasing the energy use and vibration.
- constant applicative form — (functional programming) (CAF) A supercombinator which is not a lambda abstraction. This includes truly constant expressions such as 12, (+ 1 2), [1, 2, 3] as well as partially applied functions such as (+ 4). Note that this last example is equivalent under eta abstraction to \ x . + 4 x which is not a CAF. Since a CAF is a supercombinator, it contains no free variables. Moreover, since it is not a lambda abstraction it contains no variables at all. It may however contain identifiers which refer to other CAFs, e.g. c 3 where c = (* 2). A CAF can always be lifted to the top level of the program. It can either be compiled to a piece of graph which will be shared by all uses or to some shared code which will overwrite itself with some graph the first time it is evaluated. A CAF such as ints = from 1 where from n = n : from (n+1) can grow without bound but may only be accessible from within the code of one or more functions. In order for the garbage collector to be able to reclaim such structures, we associate with each function a list of the CAFs to which it refers. When garbage collecting a reference to the function we collect the CAFs on its list.
- constitutional convention — the convention in Philadelphia (1787) of representatives from each of the former Colonies, except Rhode Island, at which the Constitution of the United States was framed.
- cost-of-living adjustment — an adjustment to pay which takes account of a change in the cost of living
- dataphone digital service — (communications, product) (DDS) The first private-line digital service offered by AT&T, with data rates typically at 2.4, 4.8, 9.6 and 56 kilobits per second. DDS is now part of AT&T's Accunet family of services. Most LEC (local exchange carriers) and IXC (IntereXchange Carriers) offer similar services.
- device independent bitmap — (graphics, file format) (DIB) An image format in which the sequence and depth of pixels in the file is not specifically related to their layout in any particular device. This allows any device dependent bitmap (DDB) image to be converted to or DIB format without loss of information, and this can then later be converted to other DDB formats for, e.g., printing or display. Rather than requiring converters from each DDB format to all other formats, only converters to and from DIB are needed. DIB images are normally transferred in metafiles, bmp files, and the clipboard. Transferring colour bitmaps from one device to another was not possible in versions of Microsoft Windows earlier than 3.0. Application programs can build DIB images without any interaction with Windows. If Windows lacks a drawing primitive, the application can simulate it directly into the DIB instead of using the existing graphics device interface (GDI) primitives. Unfortunately, under Windows versions 3.0 and 3.1, GDI cannot perform output operations directly to a DIB. Conversion between DIB and DDB is performed by the device driver. Where the driver does not have this facility, the conversion is performed by GDI but only in monochrome. DIBs are slower to use than device dependent bitmaps due to the conversions required.
- electroconvulsive therapy — the treatment of certain psychotic conditions by passing an electric current through the brain to induce coma or convulsions
- examination for discovery — a pretrial meeting to disclose evidence that will be presented later
- five nations championship — a former annual competition involving the national sides of England, France, Ireland, Scotland, and Wales; replaced by the Six Nations Championship in 2000
- franked investment income — (formerly) dividends from one UK company received by another on which the paying company had paid corporation tax so that the receiving company had no corporation tax to pay: discontinued from 1999
- gravitational interaction — an interaction between particles or bodies resulting from their mass. It is very weak and occurs at all distances
- gunning transceiver logic — (electronics, hardware, integrated circuit, standard) (GTL) A standard for electrical signals in CMOS circuits used to provide higher data transfer speeds with smaller voltage swings [compared with what?]. The GTL signal swings between 0.4 volts and 1.2 volts with a reference voltage of about 0.8 volts. Only a small deviation of 0.4 volts (or thereabouts) from the reference voltage is required to switch between on and off states. Therefore, a GTL signal is said to be a low voltage swing logic signal. Gunning Transceiver Logic has several advantages. The resistive termination of a GTL signal provides a clean signalling environment [what?]. Moreover, the low terminating voltage of 1.2 volts results in reduced voltage drops across the resistive elements. GTL has low power dissipation and can operate at high frequency and causes less electromagnetic interference (EMI).
- have no/little truck with — If you say that you will have no truck with someone or something, you are refusing to be involved with them in any way.
- improved mercury autocode — (language) (IMP) A version of Autocode used to program the Edinburgh Multi Access System (EMAS), one of the first operating systems written in a high-level language, apparently predating Unix. Luis Damas' Prolog interpreter in IMP for EMAS led to C-Prolog.
- infantry fighting vehicle — a heavily armored combat vehicle, as a tank, used to carry infantry into battle and provide support. Abbreviation: IFV.
- interactive data language — (IDL) A commercial array-oriented language with numerical analysis and display features, first released in 1977. It supports interactive reduction, analysis, and visualisation of scientific data. It is sold by Research Systems, Inc. Version: 3.6.1 runs under Unix, MS-DOS, MS Windows, VAX/VMS and Macintosh. Not to be confused with any of the other IDLs. E-mail: <[email protected]>.
- intermediate vector boson — one of the three particles that are believed to transmit the weak force: the positively charged W particle, the negatively charged W particle, and the neutral Z 0 particle.
- kent recursive calculator — (language) (KRC) A lazy functional language developed by David Turner in 1981, based on SASL, with pattern matching and ZF expressions. See also continental drift.
- licensed vocational nurse — a person with specified training who has become licensed to provide vocational assistance to patients. Abbreviation: LVN.
- magnetohydromagnetic wave — Physics. Alfvén wave.
- marcus-valerius-martialis — (Marcus Valerius Martialis) a.d. 43?–104? Roman epigrammatist, born in Spain.
- mpc level 1 specification — (multimedia) The original Multimedia Personal Computer specification. Minimum requirements are a 16 MHz 386SX with 2 megabytes of RAM, a 30 MB hard disk drive, and a CD-ROM drive with a sustained data transfer rate of 150 KB/s at no more than 40% of CPU bandwidth and reading at least 16 KB blocks. The maximum average seek time is 1 second and the Mean Time Between Failure 10000 hours. Capability Mode 1. The computer must have 8-bit digital sound and an 8-note synthesizer with MIDI playback. Sample rates of 22.05 and 11.025 kHz must be supported by no more than 10% of CPU bandwidth, preferably 44.1 kHz at no more than 15% of CPU bandwidth. The synthesizer must support multi-voice, multi-timbral generation of six simultaneous melody notes and two simultaneous percussive notes with internal mixing capabilities to combine input from three sources and present the output as a stereo, line-level audio signal at the back panel. The video display must have a resolution of at least 640 x 480 in 16 colours. MIDI, I/O, and joystick ports must be previded. Compare MPC Level 2 Specification.
- mpc level 2 specification — (multimedia) An improved version of the MPC Level 1 Specification for Multimedia Personal Computers. Minimum requirements are a 25 Mhz 486SX with 4 MB of RAM and a 160 MB hard disk drive. The CD-ROM drive must support a sustained data transfer rate of 300 KB/s using at most 60% of CPU bandwidth on 16 KB minimum block read size. Its average seek time must be 400 milliseconds maximum. Capability Mode 1, Mode 2 form 1, Mode 2 form 2, Multisession. It must be CD-ROM XA-ready. The computer must have 16-bit digital sound, an 8-note synthesizer, and MIDI playback. A sample rate of 44.1 kHz must be available on stereo channels with more than 15% of CPU bandwidth. A video display with a resolution of 640 x 480 in 65,536 colours, and MIDI, I/O, and joystick ports must be provided.
- national advanced systems — (company) (NAS) A company, previously known as ITEL, that made IBM plug-compatible hardware and was bought by Hitachi.
- net positive suction head — The net positive suction head is a measure of a pump's performance.
- observational equivalence — Two terms M and N are observationally equivalent iff for all contexts C[] where C[M] is a valid term, C[N] is also a valid term with the same value.
- permanent virtual circuit — (networking) (PVC, or in ATM terminology, "Permanent Virtual Connection") A virtual circuit that is permanently established, saving the time associated with circuit establishment and tear-down.
- personal flotation device — a life preserver, life jacket, or other device for keeping a person afloat in the water. Abbreviation: PFD.
- petropavlovsk-kamchatskiy — seaport in E Asian Russia, on Kamchatka Peninsula: pop. 210,000
- polycystic ovary syndrome — a hormonal disorder in which the Graafian follicles in the ovary fail to develop completely so that they are unable to ovulate, remaining as multiple cysts that distend the ovary. The results can include reduced fertility, obesity, and hirsutism
- principle of virtual work — the principle that the total work done by all forces on a system in static equilibrium is zero for a set of infinitesimally small displacements.
- saybolt universal seconds — a US measurement of viscosity similar in type to the British Redwood seconds
- selective synchronization — a sound-recording process that facilitates overdubs by feeding the recorded track to the performer straight from the recording head
- state services commission — (in New Zealand) a government-appointed body in charge of the public service
- statement savings account — a savings account in which transactions are confirmed periodically by a bank statement.
- transport level interface — Transport Layer Interface
- unconditional convergence — the property of a convergent infinite series that remains convergent when the terms are arranged in any order.
- uniform naming convention — Universal Naming Convention
- vertical redundancy check — (storage, communications) (VRC) An error checking method performed on one 8-bit ASCII character, where the 8th bit is used as the parity bit. The resulting parity bit is constructed by XORing the word. The result is a "1" if there is an odd number of 1s, and a "0" if there is an even number of 1s in the word. This method is unreliable because if an odd number of bits are distorted, the check will not detect the error. The Longitudinal Redundancy Check is an improvement.
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