Archive
???archives.subheading_whatis???
2011 Stories
-
March 24, 2011
24Mar2011
Definição
SDL (Specification and Description Language)
SDL (Specification and Description Language) is a program design and implementation language that is used to build real-time event-driven systems that involve parallel processing. Continue Reading
-
March 24, 2011
24Mar2011
Definição
scientific notation (power-of-10 notation)
Scientific notation, also called power-of-10 notation, is a method of writing extremely large and small numbers. Continue Reading
-
March 24, 2011
24Mar2011
Definição
SFX (special effects)
SFX, an abbreviation for special effects, is a software product that makes it easy to create certain kinds of hypertext links within a collection of information such as the description of a library collection. Continue Reading
-
March 24, 2011
24Mar2011
Definição
slot (or expansion slot)
In computers, a slot, or expansion slot, is an engineered technique for adding capability to a computer in the form of connection pinholes (typically, in the range of 16 to 64 closely-spaced holes) and a place to fit an expansion card containing the... Continue Reading
-
March 24, 2011
24Mar2011
Definição
small to medium enterprise (SME)
SME (small-to-medium enterprise) is a convenient term for segmenting businesses and other organizations that are somewhere between the "small office-home office" (SOHO) size and the larger enterprise. Continue Reading
-
March 24, 2011
24Mar2011
Definição
soft keyboard (onscreen keyboard or software keyboard)
A soft keyboard (sometimes called an onscreen keyboard or software keyboard) is a system that replaces the hardware keyboard on a computing device with an on-screen image map. Continue Reading
-
March 24, 2011
24Mar2011
Definição
spool (simultaneous peripheral operations online)
To spool (which stands for "simultaneous peripheral operations online") a computer document or task list (or "job") is to read it in and store it, usually on a hard disk or larger storage medium so that it can be printed or otherwise processed at a ... Continue Reading
-
March 24, 2011
24Mar2011
Definição
SRTP (Secure Real-Time Transport Protocol or Secure RTP)
SRTP (Secure Real-Time Transport Protocol or Secure RTP) is an extension to RTP (Real-Time Transport Protocol) that incorporates enhanced security features. Continue Reading
-
March 24, 2011
24Mar2011
Definição
stereoscopy (stereoscopic imaging)
Stereoscopy, sometimes called stereoscopic imaging, is a technique used to enable a three-dimensional effect, adding an illusion of depth to a flat image. Continue Reading
-
March 24, 2011
24Mar2011
Definição
ripping (digital extraction)
Ripping, more formally known as digital extraction, is the process of copying audio or video content from a compact disc, DVD or streaming media onto a computer hard drive. Continue Reading
-
March 24, 2011
24Mar2011
Definição
radian per second (rad/s or rad/sec)
The radian per second (symbolized rad/s or rad/sec) is the Standard International (SI) unit of angular (rotational) speed. Continue Reading
-
March 24, 2011
24Mar2011
Definição
rack server (rack-mounted server)
A rack server, also called a rack-mounted server, is a computer dedicated to use as a server and designed to be installed in a framework called a rack. Continue Reading
-
March 24, 2011
24Mar2011
Definição
push (or server-push)
Push (or "server-push") is the delivery of information on the Web that is initiated by the information server rather than by the information user or client, as it usually is. Continue Reading
-
March 24, 2011
24Mar2011
Definição
pulse amplitude modulation (PAM)
Pulse amplitude modulation (PAM) is the transmission of data by varying the amplitudes (voltage or power levels) of the individual pulses in a regularly timed sequence of electrical or electromagnetic pulses. Continue Reading
-
March 24, 2011
24Mar2011
Definição
pseudo-random number generator (PRNG)
A pseudo-random number generator (PRNG) is a program written for, and used in, probability and statistics applications when large quantities of random digits are needed. Continue Reading
-
March 24, 2011
24Mar2011
Definição
propeller head (or propellor head, prop head, prophead)
A propeller head (also spelled propellor head, and sometimes shortened to prop head or prophead) is jargon for someone who is exceptionally, perhaps weirdly bright or knowledgeable, especially in some technical field. Continue Reading
-
March 24, 2011
24Mar2011
Definição
Printer Control Language (PCL)
Printer Control Language (PCL) is a language (essentially, a set of command code s) that enables applications to control HP DeskJet, LaserJet, and other HP printers. Continue Reading
-
March 24, 2011
24Mar2011
Definição
PPD file (Postscript Printer Description file)
A PPD (Postscript Printer Description) file is a file that describes the font s, paper sizes, resolution, and other capabilities that are standard for a particular Postscript printer. Continue Reading
-
March 24, 2011
24Mar2011
Definição
power-up (or power-on)
Power-up (or the synonym "power-on") is a verb meaning to apply electrical power to a device - that is, to "turn it on" as most of us would say about turning on a light switch when entering a dark room. Continue Reading
-
March 24, 2011
24Mar2011
Definição
potential energy (U)
Potential energy, expressed in science as U, is energy that is stored within an object, not in motion but capable of becoming active. Continue Reading
-
March 24, 2011
24Mar2011
Definição
polarization (wave polarization)
Polarization, also called wave polarization, is an expression of the orientation of the lines of electric flux in an electromagnetic field (EM field). Continue Reading
-
March 24, 2011
24Mar2011
Definição
point-to-point graph (line graph)
A point-to-point graph, also called a line graph, is a pictorial rendition of data in which specific values of a function are plotted as dots on a coordinate plane. Continue Reading
-
March 24, 2011
24Mar2011
Definição
PIO (Programmed Input/Output)
Programmed Input/Output (PIO) is a way of moving data between devices in a computer in which all data must pass through the processor. Continue Reading
-
March 24, 2011
24Mar2011
Definição
Pareto chart (Pareto distribution diagram)
A Pareto chart, also called a Pareto distribution diagram, is a vertical bar graph in which values are plotted in decreasing order of relative frequency from left to right. Continue Reading
-
March 24, 2011
24Mar2011
Definição
page description language (PDL)
A page description language (PDL) specifies the arrangement of a printed page through commands from a computer that the printer carries out. Continue Reading
-
March 24, 2011
24Mar2011
Definição
optical computer (photonic computer)
An optical computer (also called a photonic computer) is a device that uses the photons in visible light or infrared (IR) beams,rather than electric current, to perform digital computations. Continue Reading
-
March 24, 2011
24Mar2011
Definição
NRZ (non-return-to-zero)
NRZ (non-return-to-zero) refers to a form of digital data transmission in which the binary low and high states, represented by numerals 0 and 1, are transmitted by specific and constant DC (direct-current) voltage s. Continue Reading
-
March 24, 2011
24Mar2011
Definição
nonuniform rational B-spline (NURBS)
NURBS (nonuniform rational B-splines) are mathematical representations of 2- or 3-dimensional objects, which can be standard shapes (such as a cone) or free-form shapes (such as a car). Continue Reading
-
March 24, 2011
24Mar2011
Definição
newton-second
The newton-second is the standard unit of impulse. Continue Reading
-
March 24, 2011
24Mar2011
Definição
nanomachine (nanite)
A nanomachine, also called a nanite, is a mechanical or electromechanical device whose dimensions are measured in nanometers (millionths of a millimeter, or units of 10 -9 meter). Continue Reading
-
March 24, 2011
24Mar2011
Definição
multifunction peripheral (MFP)
A multifunction peripheral (MFP) is a device that performs a variety of functions that would otherwise be carried out by separate peripheral devices. Continue Reading
-
March 24, 2011
24Mar2011
Definição
MTBF (mean time between failures)
MTBF (mean time between failures) is a measure of how reliable a hardware product or component is. Continue Reading
-
March 24, 2011
24Mar2011
Definição
mole per meter cubed (Avogadro constant)
The mole per meter cubed (mol / m 3) is the International Unit of amount-of-substance concentration. Continue Reading
-
March 24, 2011
24Mar2011
Definição
MIT License (X11 license or MIT X license)
The MIT License (also known as the X11 license or MITX license) is a software license that was originally developed at the Massachusetts Institute of Technology. Continue Reading
-
March 24, 2011
24Mar2011
Definição
male connector (or plug)
A male connector is a connector attached to a wire, cable, or piece of hardware, having one or more exposed, unshielded electrical terminal s, and constructed in such a way that it can be inserted snugly into a receptacle (female connector) to ... Continue Reading
-
March 24, 2011
24Mar2011
Definição
magnetomotive force (magnetic potential)
Magnetomotive force, also known as magnetic potential, is the property of certain substances or phenomena that gives rise to magnetic field s. Continue Reading
-
March 24, 2011
24Mar2011
Definição
magnetic stripe reader (magstripe reader)
A magnetic stripe reader, also called a magstripe reader, is a hardware device that reads the information encoded in the magnetic stripe located on the back of a plastic badge. Continue Reading
-
March 24, 2011
24Mar2011
Definição
LPT (line print terminal)
LPT (line print terminal) is the usual designation for a parallel port connection to a printer or other device on a personal computer. Continue Reading
-
March 24, 2011
24Mar2011
Definição
lux (lx)
The lux (symbolized lx) is the unit of illuminance in the International System of Units (SI). Continue Reading
-
March 24, 2011
24Mar2011
Definição
longitudinal time code (LTC)
Longitidinal time code (LTC) is a timing signal that is part of an audio tape recording. Continue Reading
-
March 24, 2011
24Mar2011
Definição
legacy platform (legacy operating system)
A legacy platform, also called a legacy operating system, is an operating system (OS) no longer in widespread use, or that has been supplanted by an updated version of earlier technology. Continue Reading
-
March 24, 2011
24Mar2011
Definição
LED TV (LED-backlight LCD television)
LED TV is a type of LCD television that uses light-emitting diodes (LEDs) to backlight the display instead of the cold cathode fluorescent lights (CCFLs) used in standard LCD televisions. Continue Reading
-
March 24, 2011
24Mar2011
Definição
Theory of Constraints (TOC)
The Theory of Constraints (TOC) is a philosophy of management and continuous improvement originally developed by Dr. Continue Reading
-
March 24, 2011
24Mar2011
Definição
teletypewriter (TTY)
A teletypewriter (TTY) is an input device that allows alphanumeric character to be typed in and sent, usually one at a time as they are typed, to a computer or a printer. Continue Reading
-
March 24, 2011
24Mar2011
Definição
keyboard wedge (KBW)
A keyboard wedge can be either a software program or an inserted hardware device that translates digital signals from a barcode reader or magnetic strip reader (MSR) into keyboard strokes for a computer. Continue Reading
-
March 24, 2011
24Mar2011
Definição
kelvin (K)
The kelvin (abbreviation K), less commonly called the degree Kelvin (symbol, o K), is the Standard International (SI) unit of thermodynamic temperature. Continue Reading
-
March 24, 2011
24Mar2011
Definição
intelligent character recognition (ICR)
Intelligent character recognition (ICR) is the computer translation of manually entered text characters into machine-readable characters. Continue Reading
-
March 24, 2011
24Mar2011
Definição
initial program load (IPL)
IPL (initial program load) is a mainframe term for the loading of the operating system into the computer's main memory. Continue Reading
-
March 24, 2011
24Mar2011
Definição
IDL (interface definition language)
IDL (interface definition language) is a generic term for a language that lets a program or object written in one language communicate with another program written in an unknown language. Continue Reading
-
March 23, 2011
23Mar2011
Definição
Hypertext Transfer Protocol daemon (HTTPD)
On the Web, each server has an HTTPD or Hypertext Transfer Protocol daemon that waits in attendance for requests to come in from the rest of the Web. Continue Reading
-
March 23, 2011
23Mar2011
Definição
henry per meter (H/m)
The henry per meter (symbolized H/m) is the unit of magnetic permeability in the International System of Units (SI). Continue Reading
-
March 23, 2011
23Mar2011
Definição
gram (g or gm)
The gram (abbreviation, g or gm) is the cgs (centimeter/gram/second) unit of mass. Continue Reading
-
March 23, 2011
23Mar2011
Definição
GML (Generalized Markup Language)
GML (Generalized Markup Language) is an IBM document-formatting language that describes a document in terms of its organization structure and content parts and their relationship. Continue Reading
-
March 23, 2011
23Mar2011
Definição
GID (group ID or global index file)
In a Unix system, a GID (group ID) is a name that associates a system user with other users sharing something in common (perhaps a work project or a department name). Continue Reading
-
March 23, 2011
23Mar2011
Definição
Gbps (billions of bits per second)
Gbps stands for billions of bits per second and is a measure of bandwidth on a digital data transmission medium such as optical fiber. Continue Reading
-
March 23, 2011
23Mar2011
Definição
gallium arsenide field-effect transistor (GaAsFET)
A gallium arsenide field-effect transistor (GaAsFET) is a specialized type of field-effect transistor (FET) that is used in amplifier circuits at very-high, ultra-high, and microwave radio frequencies. Continue Reading
-
March 23, 2011
23Mar2011
Definição
gallium arsenide (GaAs)
Gallium arsenide (chemical formula GaAs) is a semiconductor compound used in some diode s, field-effect transistors (FETs), and integrated circuits (ICs). Continue Reading
-
March 23, 2011
23Mar2011
Definição
free-space optics (FSO)
Free-space optics (FSO), also called free-space photonics (FSP), refers to the transmission of modulated visible or infrared (IR) beams through the atmosphere to obtain broadband communications. Continue Reading
-
March 23, 2011
23Mar2011
Definição
foot per second (ft/s or ft/sec)
The foot per second (symbolized ft/s or ft/sec) is the unit of linear speed in the foot-pound-second (fps) or English system. Continue Reading
-
March 23, 2011
23Mar2011
Definição
foot-pound-second system of units (fps system of units)
The foot-pound-second (fps) system of units is a scheme for measuring dimensional and material quantities. Continue Reading
-
March 23, 2011
23Mar2011
Definição
foot cubed (cubic foot)
The foot cubed, also called the cubic foot, is the unit of volume in the English foot-pound-second (fps) system. Continue Reading
-
March 23, 2011
23Mar2011
Definição
Fizt (physics tool)
Fizt (pronounced FIZZ-tee, and short for physics tool) is an animation program that can speed up the production of special effects -- in some cases by a factor of more than 150 to 1 -- and can also make the effects appear more life-like than has ... Continue Reading
-
March 23, 2011
23Mar2011
Definição
FIPS (Federal Information Processing Standards)
FIPS (Federal Information Processing Standards) are a set of standards that describe document processing, encryption algorithms and other information technology standards for use within non-military government agencies and by government contractors ... Continue Reading
-
March 23, 2011
23Mar2011
Definição
FiOS (Fiber Optic Service)
FiOS (Fiber Optic Service) is a fiber to the premises (FTTP) telecommunications service offered by Verizon to consumers in the United States. Continue Reading
-
March 23, 2011
23Mar2011
Definição
Fibonacci poem (or Fib)
A Fibonacci poem (or Fib) is a multiple-line verse based on the Fibonacci sequence so that the number of syllables in each line equals the total number of syllables in the preceding two lines. Continue Reading
-
March 23, 2011
23Mar2011
Definição
Fair Information Practices (FIP)
FIP (Fair Information Practices) is a general term for a set of standards governing the collection and use of personal data and addressing issues of privacy and accuracy. Continue Reading
-
March 22, 2011
22Mar2011
Definição
EPEAT (Electronic Product Environmental Assessment Tool)
EPEAT (Electronic Product Environmental Assessment Tool) is a ranking system that helps purchasers in the public and private sectors evaluate, compare and select desktop computers, notebooks and monitors based on their environmental attributes. Continue Reading
-
March 22, 2011
22Mar2011
Definição
EPP/ECP (Enhanced Parallel Port/Enhanced Capability Port)
EPP/ECP (Enhanced Parallel Port/Enhanced Capability Port) is a standard signaling method for bi-directional parallel communication between a computer and peripheral devices that offers the potential for much higher rates of data transfer than the ... Continue Reading
-
March 22, 2011
22Mar2011
Definição
e-bomb (electromagnetic bomb)
An e-bomb (electromagnetic bomb) is a weapon that uses an intense electromagnetic field to create a brief pulse of energy that affects electronic circuitry without harming humans or buildings. Continue Reading
-
March 22, 2011
22Mar2011
Definição
dots per inch (dpi)
In computers, dots per inch (dpi) is a measure of the sharpness (that is, the density of illuminated points) on a display screen. Continue Reading
-
March 22, 2011
22Mar2011
Definição
discontinuous transmission (DTX)
Discontinuous transmission (DTX) is a method of momentarily powering-down, or muting, a mobile or portable wireless telephone set when there is no voice input to the set. Continue Reading
-
March 22, 2011
22Mar2011
Definição
direct digital marketing (DDM)
Direct digital marketing (DDM) is the electronic delivery of relevant communications to specific recipients. Continue Reading
-
March 22, 2011
22Mar2011
Definição
digital projector (digital projection display system)
A digital projector, also called a digital projection display system, is a specialized computer display that projects an enlarged image on a movie screen. Continue Reading
-
March 22, 2011
22Mar2011
Definição
Digital Millennium Copyright Act (DMCA)
The Digital Millennium Copyright Act (DMCA) is a controversial United States digital rights management (DRM) law enacted October 28, 1998 by then-President Bill Clinton. Continue Reading
-
March 22, 2011
22Mar2011
Definição
digiboard (or digicard)
Digiboard or digicard is a generic name for a serial port card made by Digi International. Continue Reading
-
March 22, 2011
22Mar2011
Definição
decibels relative to reference level (dBr)
The expression dBr is used to define signal strength at RF and AF frequencies. Continue Reading
-
March 22, 2011
22Mar2011
Definição
decibels relative to one millivolt (dBmV)
dBmV (decibels relative to one millivolt) is a measure of the signal strength in wires and cables at RF and AF frequencies. Continue Reading
-
March 22, 2011
22Mar2011
Definição
decibels relative to carrier (dBc)
dBc (decibels relative to carrier) is a measure of the strength of an instantaneous signal at radio frequency. Continue Reading
-
March 22, 2011
22Mar2011
Definição
daughterboard (or daughter board, daughter card, or daughtercard)
A daughterboard (or daughter board, daughter card, or daughtercard) is a circuit board that plugs into and extends the circuitry of another circuit board. Continue Reading
-
March 22, 2011
22Mar2011
Definição
Data Access Arrangement (DAA)
A Data Access Arrangement (DAA) is an electronic interface within a computer and its modem to a public telephone line. Continue Reading
-
March 22, 2011
22Mar2011
Definição
cumulative trauma disorder (CTD)
In information technology, cumulative trauma disorder (CTD) refers to any of several physical problems that can result from improper or excessive use of a computer display or terminal. Continue Reading
-
March 22, 2011
22Mar2011
Definição
content delivery (content distribution, content distribution delivery, or content caching)
On the Internet, content delivery (sometimes called content distribution, content distribution delivery, or content caching) is the service of copying the pages of a Web site to geographically dispersed servers and, when a page is requested, ... Continue Reading
-
March 22, 2011
22Mar2011
Definição
computer-based training (CBT)
Computer-based training (CBT) is any course of instruction whose primary means of delivery is a computer. Continue Reading
-
March 22, 2011
22Mar2011
Definição
Concurrent Versions System (CVS)
CVS also is an abbreviation for Computer Vision Syndrome. Continue Reading
-
March 22, 2011
22Mar2011
Definição
Common Criteria (CC) for Information Technology Security Evaluation
Common Criteria (CC) is an international set of guidelines and specifications developed for evaluating information security products, specifically to ensure they meet an agreed-upon security standard for government deployments. Continue Reading
-
March 22, 2011
22Mar2011
Definição
closed circuit television (CCTV)
CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. Continue Reading
-
March 22, 2011
22Mar2011
Definição
CE router (customer edge router)
A CE router (customer edge router) is a router located on the customer premises that provides an Ethernet interface between the customer's LAN and the provider's core network. Continue Reading
-
March 22, 2011
22Mar2011
Definição
CAPI (Common Application Programming Interface)
CAPI (Common Application Programming Interface) is an international standard interface that applications can use to communicate directly with ISDN equipment. Continue Reading
-
March 22, 2011
22Mar2011
Definição
bulk power system (BPS)
A bulk power system (BPS) is a large interconnected electrical system made up of generation and transmission facilities and their control systems. Continue Reading
-
March 22, 2011
22Mar2011
Definição
brain-computer interface (BCI)
Brain-computer interface (BCI) is a collaboration between a brain and a device that enables signals from the brain to direct some external activity, such as control of a cursor or a prosthetic limb. Continue Reading
-
March 22, 2011
22Mar2011
Definição
black level (brightness)
On a display or television monitor, black level is the technical term for what is usually called brightness. Continue Reading
-
March 21, 2011
21Mar2011
Definição
admittance (Y)
Admittance (symbolized Y) is an expression of the ease with which alternating current (AC) flows through a complex circuit or system. Continue Reading
-
March 21, 2011
21Mar2011
Definição
24x7 (24 hours a day, 7 days a week)
24x7 means "24 hours a day, 7 days a week" and is used to describe a service, such as computer server monitoring, that is continuous, is always available (day or night), or involves products that can run constantly without disruption or downtime. Continue Reading
-
March 21, 2011
21Mar2011
Definição
1xRTT (Single-Carrier Radio Transmission Technology)
1xRTT (Single-Carrier Radio Transmission Technology) is an operational mode for CDMA2000 wireless communications that specifies a single (1x) 1. Continue Reading
-
March 17, 2011
17Mar2011
Definição
Defense Information Systems Agency (DISA)
Defense Information Systems Agency (DISA) is a U.S combat support agency that connects the U.S military and government though IT and communications support. Continue Reading
-
March 10, 2011
10Mar2011
Definição
governmentwide acquisition contract (GWAC)
A governmentwide acquisition contract (GWAC) is a contract between a commercial IT service or product vendor and the U.S. government that consolidates the procurement of IT solutions across multiple federal agencies. Continue Reading
-
March 04, 2011
04Mar2011
Definição
decoupled architecture
In general, a decoupled architecture is a framework for complex work that allows components to remain completely autonomous and unaware of each other.� Continue Reading
-
February 21, 2011
21Feb2011
Definição
UART (Universal Asynchronous Receiver/Transmitter)
A UART (Universal Asynchronous Receiver/Transmitter) is the microchip with programming that controls a computer's interface to its attached serial devices. Continue Reading
-
February 21, 2011
21Feb2011
Definição
ampere per meter squared (A/m 2)
The ampere per meter squared, symbolized A/m 2, is the International Unit of electric current density. Continue Reading
-
February 17, 2011
17Feb2011
Definição
IT chargeback system
An IT chargeback system is an accounting strategy that applies the costs of IT services, hardware or software to the business unit in which they are used. Continue Reading